157157146 has 16 divisors (see below), whose sum is σ = 249872040. Its totient is φ = 73876480.

The previous prime is 157157087. The next prime is 157157159. The reversal of 157157146 is 641751751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 156525121 + 632025 = 12511^2 + 795^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39906 + ... + 43666.

Almost surely, 2^157157146 is an apocalyptic number.

157157146 is a deficient number, since it is larger than the sum of its proper divisors (92714894).

157157146 is a wasteful number, since it uses less digits than its factorization.

157157146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009.

The product of its digits is 29400, while the sum is 37.

The square root of 157157146 is about 12536.2333258439. The cubic root of 157157146 is about 539.6490014395.

It can be divided in two parts, 157157 and 146, that multiplied together give a palindrome (22944922).

The spelling of 157157146 in words is "one hundred fifty-seven million, one hundred fifty-seven thousand, one hundred forty-six".