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151212135 = 3522944021
BaseRepresentation
bin10010000001101…
…01000001100111
3101112112101001110
421000311001213
5302202242020
623001000103
73514165464
oct1100650147
9345471043
10151212135
117839aa08
1242783033
1325434849
141612266b
15d41d8e0
hex9035067

151212135 has 16 divisors (see below), whose sum is σ = 243001440. Its totient is φ = 80292480.

The previous prime is 151212091. The next prime is 151212151. The reversal of 151212135 is 531212151.

It is not a de Polignac number, because 151212135 - 26 = 151212071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18576 + ... + 25445.

It is an arithmetic number, because the mean of its divisors is an integer number (15187590).

Almost surely, 2151212135 is an apocalyptic number.

151212135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151212135 is a deficient number, since it is larger than the sum of its proper divisors (91789305).

151212135 is a wasteful number, since it uses less digits than its factorization.

151212135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44258.

The product of its digits is 300, while the sum is 21.

The square root of 151212135 is about 12296.8343487257. The cubic root of 151212135 is about 532.7566529329.

Adding to 151212135 its reverse (531212151), we get a palindrome (682424286).

The spelling of 151212135 in words is "one hundred fifty-one million, two hundred twelve thousand, one hundred thirty-five".

Divisors: 1 3 5 15 229 687 1145 3435 44021 132063 220105 660315 10080809 30242427 50404045 151212135