157157287146 has 24 divisors (see below), whose sum is σ = 344017845444. Its totient is φ = 51845702400.

The previous prime is 157157287123. The next prime is 157157287159. The reversal of 157157287146 is 641782751751.

It is a happy number.

157157287146 is a `hidden beast` number, since 1 + 57 + 1 + 572 + 8 + 7 + 14 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146336086521 + 10821200625 = 382539^2 + 104025^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 157157287092 and 157157287101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45003205 + ... + 45006696.

Almost surely, 2^157157287146 is an apocalyptic number.

157157287146 is an abundant number, since it is smaller than the sum of its proper divisors (186860558298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157157287146 is a wasteful number, since it uses less digits than its factorization.

157157287146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90010006 (or 90010003 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 54.

The spelling of 157157287146 in words is "one hundred fifty-seven billion, one hundred fifty-seven million, two hundred eighty-seven thousand, one hundred forty-six".