156011402 has 4 divisors (see below), whose sum is σ = 234017106. Its totient is φ = 78005700.

The previous prime is 156011389. The next prime is 156011411. The reversal of 156011402 is 204110651.

156011402 is digitally balanced in base 3, 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., 117310561 + 38700841 = 10831^2 + 6221^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39002849 + ... + 39002852.

Almost surely, 2^156011402 is an apocalyptic number.

156011402 is a deficient number, since it is larger than the sum of its proper divisors (78005704).

156011402 is an equidigital number, since it uses as much as digits as its factorization.

156011402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78005703.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 156011402 is about 12490.4524337592. The cubic root of 156011402 is about 538.3343761435.

The spelling of 156011402 in words is "one hundred fifty-six million, eleven thousand, four hundred two".