157502241 has 12 divisors (see below), whose sum is σ = 245003668. Its totient is φ = 96924384.

The previous prime is 157502237. The next prime is 157502251. The reversal of 157502241 is 142205751.

157502241 is a `hidden beast` number, since 157 + 502 + 2 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 59907600 + 97594641 = 7740^2 + 9879^2 .

It is not a de Polignac number, because 157502241 - 2² = 157502237 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157502201) 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, 672970 + ... + 673203.

Almost surely, 2^157502241 is an apocalyptic number.

It is an amenable number.

157502241 is a deficient number, since it is larger than the sum of its proper divisors (87501427).

157502241 is a wasteful number, since it uses less digits than its factorization.

157502241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346192 (or 1346189 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 157502241 is about 12549.9896812707. The cubic root of 157502241 is about 540.0437104535.

Adding to 157502241 its reverse (142205751), we get a palindrome (299707992).

The spelling of 157502241 in words is "one hundred fifty-seven million, five hundred two thousand, two hundred forty-one".