157136146 has 4 divisors (see below), whose sum is σ = 235704222. Its totient is φ = 78568072.

The previous prime is 157136101. The next prime is 157136153. The reversal of 157136146 is 641631751.

157136146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 108680625 + 48455521 = 10425^2 + 6961^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39284035 + ... + 39284038.

Almost surely, 2^157136146 is an apocalyptic number.

157136146 is a deficient number, since it is larger than the sum of its proper divisors (78568076).

157136146 is an equidigital number, since it uses as much as digits as its factorization.

157136146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78568075.

The product of its digits is 15120, while the sum is 34.

The square root of 157136146 is about 12535.3957257041. The cubic root of 157136146 is about 539.6249636443.

Adding to 157136146 its reverse (641631751), we get a palindrome (798767897).

The spelling of 157136146 in words is "one hundred fifty-seven million, one hundred thirty-six thousand, one hundred forty-six".