157152706 has 4 divisors (see below), whose sum is σ = 235729062. Its totient is φ = 78576352.

The previous prime is 157152689. The next prime is 157152731. The reversal of 157152706 is 607251751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 30702681 = 11245^2 + 5541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39288175 + ... + 39288178.

Almost surely, 2^157152706 is an apocalyptic number.

157152706 is a deficient number, since it is larger than the sum of its proper divisors (78576356).

157152706 is an equidigital number, since it uses as much as digits as its factorization.

157152706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78576355.

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 157152706 is about 12536.0562379083. The cubic root of 157152706 is about 539.6439193413.

The spelling of 157152706 in words is "one hundred fifty-seven million, one hundred fifty-two thousand, seven hundred six".