Search a number
-
+
9149161 = 74727809
BaseRepresentation
bin100010111001…
…101011101001
3122012211021211
4202321223221
54320233121
6524033121
7140523640
oct42715351
918184254
109149161
11518999a
1230927a1
131b84508
141302357
15c0ace1
hex8b9ae9

9149161 has 8 divisors (see below), whose sum is σ = 10679040. Its totient is φ = 7675008.

The previous prime is 9149149. The next prime is 9149167. The reversal of 9149161 is 1619419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9149161 - 219 = 8624873 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9149167) 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 7 ways as a sum of consecutive naturals, for example, 13576 + ... + 14233.

It is an arithmetic number, because the mean of its divisors is an integer number (1334880).

Almost surely, 29149161 is an apocalyptic number.

It is an amenable number.

9149161 is a deficient number, since it is larger than the sum of its proper divisors (1529879).

9149161 is a wasteful number, since it uses less digits than its factorization.

9149161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27863.

The product of its digits is 1944, while the sum is 31.

The square root of 9149161 is about 3024.7580068495. The cubic root of 9149161 is about 209.1512301817.

The spelling of 9149161 in words is "nine million, one hundred forty-nine thousand, one hundred sixty-one".

Divisors: 1 7 47 329 27809 194663 1307023 9149161