157647245 has 48 divisors (see below), whose sum is σ = 230693760. Its totient is φ = 101243520.

The previous prime is 157647229. The next prime is 157647247. The reversal of 157647245 is 542746751.

It is not a de Polignac number, because 157647245 - 2⁴ = 157647229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157647247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1446251 + ... + 1446359.

It is an arithmetic number, because the mean of its divisors is an integer number (4806120).

Almost surely, 2^157647245 is an apocalyptic number.

It is an amenable number.

157647245 is a deficient number, since it is larger than the sum of its proper divisors (73046515).

157647245 is a wasteful number, since it uses less digits than its factorization.

157647245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 195 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 157647245 is about 12555.7654087674. The cubic root of 157647245 is about 540.2093895331.

The spelling of 157647245 in words is "one hundred fifty-seven million, six hundred forty-seven thousand, two hundred forty-five".