157640536 has 8 divisors (see below), whose sum is σ = 295576020. Its totient is φ = 78820264.

The previous prime is 157640501. The next prime is 157640543. The reversal of 157640536 is 635046751.

157640536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 157640495 and 157640504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9852526 + ... + 9852541.

Almost surely, 2^157640536 is an apocalyptic number.

It is an amenable number.

157640536 is a deficient number, since it is larger than the sum of its proper divisors (137935484).

157640536 is a wasteful number, since it uses less digits than its factorization.

157640536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19705073 (or 19705069 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 157640536 is about 12555.4982378239. The cubic root of 157640536 is about 540.2017261870.

The spelling of 157640536 in words is "one hundred fifty-seven million, six hundred forty thousand, five hundred thirty-six".