157640575 has 12 divisors (see below), whose sum is σ = 206973360. Its totient is φ = 118693760.

The previous prime is 157640543. The next prime is 157640579. The reversal of 157640575 is 575046751.

It is a happy number.

It is not a de Polignac number, because 157640575 - 2⁵ = 157640543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157640579) 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, 185035 + ... + 185884.

It is an arithmetic number, because the mean of its divisors is an integer number (17247780).

Almost surely, 2^157640575 is an apocalyptic number.

157640575 is a deficient number, since it is larger than the sum of its proper divisors (49332785).

157640575 is a wasteful number, since it uses less digits than its factorization.

157640575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370946 (or 370941 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 157640575 is about 12555.4997909283. The cubic root of 157640575 is about 540.2017707353.

The spelling of 157640575 in words is "one hundred fifty-seven million, six hundred forty thousand, five hundred seventy-five".