156968402 has 8 divisors (see below), whose sum is σ = 235688076. Its totient is φ = 78405712.

The previous prime is 156968363. The next prime is 156968411. The reversal of 156968402 is 204869651.

It is a happy number.

156968402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 153239641 + 3728761 = 12379^2 + 1931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 156968402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36713 + ... + 40764.

Almost surely, 2^156968402 is an apocalyptic number.

156968402 is a deficient number, since it is larger than the sum of its proper divisors (78719674).

156968402 is a wasteful number, since it uses less digits than its factorization.

156968402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78492.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 156968402 is about 12528.7031252241. The cubic root of 156968402 is about 539.4328773948.

The spelling of 156968402 in words is "one hundred fifty-six million, nine hundred sixty-eight thousand, four hundred two".