157309641 has 16 divisors (see below), whose sum is σ = 233283520. Its totient is φ = 104768640.

The previous prime is 157309631. The next prime is 157309643. The reversal of 157309641 is 146903751.

157309641 is a `hidden beast` number, since 1 + 5 + 7 + 3 + 0 + 9 + 641 = 666.

It is not a de Polignac number, because 157309641 - 2⁶ = 157309577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157309596 and 157309605.

It is not an unprimeable number, because it can be changed into a prime (157309643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32601 + ... + 37113.

It is an arithmetic number, because the mean of its divisors is an integer number (14580220).

Almost surely, 2^157309641 is an apocalyptic number.

It is an amenable number.

157309641 is a deficient number, since it is larger than the sum of its proper divisors (75973879).

157309641 is a wasteful number, since it uses less digits than its factorization.

157309641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5807 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 157309641 is about 12542.3140209453. The cubic root of 157309641 is about 539.8234916942.

The spelling of 157309641 in words is "one hundred fifty-seven million, three hundred nine thousand, six hundred forty-one".