12154064157 has 12 divisors (see below), whose sum is σ = 17573214204. Its totient is φ = 8094704640.

The previous prime is 12154064119. The next prime is 12154064159. The reversal of 12154064157 is 75146045121.

12154064157 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 4 + 0 + 641 + 5 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 579316761 + 11574747396 = 24069^2 + 107586^2 .

It is not a de Polignac number, because 12154064157 - 2¹⁵ = 12154031389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154064159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657444 + ... + 675677.

It is an arithmetic number, because the mean of its divisors is an integer number (1464434517).

Almost surely, 2^12154064157 is an apocalyptic number.

It is an amenable number.

12154064157 is a deficient number, since it is larger than the sum of its proper divisors (5419150047).

12154064157 is a wasteful number, since it uses less digits than its factorization.

12154064157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334140 (or 1334137 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 12154064157 in words is "twelve billion, one hundred fifty-four million, sixty-four thousand, one hundred fifty-seven".