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106154161 = 139763699
BaseRepresentation
bin1100101001111…
…00100010110001
321101202012010121
412110330202301
5204133413121
614311130241
72426203231
oct624744261
9241665117
10106154161
1154a15213
122b673981
1318cb9a19
1410153cc1
1594bd141
hex653c8b1

106154161 has 4 divisors (see below), whose sum is σ = 106918000. Its totient is φ = 105390324.

The previous prime is 106154141. The next prime is 106154189. The reversal of 106154161 is 161451601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161451601 = 179497153.

It is a cyclic number.

It is not a de Polignac number, because 106154161 - 25 = 106154129 is a prime.

It is a super-2 number, since 2×1061541612 = 22537411795227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106154141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381711 + ... + 381988.

It is an arithmetic number, because the mean of its divisors is an integer number (26729500).

Almost surely, 2106154161 is an apocalyptic number.

It is an amenable number.

106154161 is a deficient number, since it is larger than the sum of its proper divisors (763839).

106154161 is an equidigital number, since it uses as much as digits as its factorization.

106154161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763838.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 106154161 is about 10303.1141408799. The cubic root of 106154161 is about 473.4916675329.

The spelling of 106154161 in words is "one hundred six million, one hundred fifty-four thousand, one hundred sixty-one".

Divisors: 1 139 763699 106154161