157208285 has 32 divisors (see below), whose sum is σ = 213319680. Its totient is φ = 110419200.

The previous prime is 157208269. The next prime is 157208287. The reversal of 157208285 is 582802751.

It is a happy number.

It is not a de Polignac number, because 157208285 - 2⁴ = 157208269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157208287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122276 + ... + 123554.

It is an arithmetic number, because the mean of its divisors is an integer number (6666240).

Almost surely, 2^157208285 is an apocalyptic number.

It is an amenable number.

157208285 is a deficient number, since it is larger than the sum of its proper divisors (56111395).

157208285 is a wasteful number, since it uses less digits than its factorization.

157208285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 157208285 is about 12538.2728076877. The cubic root of 157208285 is about 539.7075290940.

The spelling of 157208285 in words is "one hundred fifty-seven million, two hundred eight thousand, two hundred eighty-five".