156407894 has 4 divisors (see below), whose sum is σ = 234611844. Its totient is φ = 78203946.

The previous prime is 156407891. The next prime is 156407903. The reversal of 156407894 is 498704651.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156407891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39101972 + ... + 39101975.

It is an arithmetic number, because the mean of its divisors is an integer number (58652961).

Almost surely, 2^156407894 is an apocalyptic number.

156407894 is a deficient number, since it is larger than the sum of its proper divisors (78203950).

156407894 is an equidigital number, since it uses as much as digits as its factorization.

156407894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78203949.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 156407894 is about 12506.3141652527. The cubic root of 156407894 is about 538.7900366634.

The spelling of 156407894 in words is "one hundred fifty-six million, four hundred seven thousand, eight hundred ninety-four".