156922401 has 8 divisors (see below), whose sum is σ = 210045024. Its totient is φ = 104207360.

The previous prime is 156922327. The next prime is 156922417. The reversal of 156922401 is 104229651.

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

It is a cyclic number.

It is not a de Polignac number, because 156922401 - 2²¹ = 154825249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156922421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100995 + ... + 102536.

It is an arithmetic number, because the mean of its divisors is an integer number (26255628).

Almost surely, 2^156922401 is an apocalyptic number.

It is an amenable number.

156922401 is a deficient number, since it is larger than the sum of its proper divisors (53122623).

156922401 is a wasteful number, since it uses less digits than its factorization.

156922401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203791.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 156922401 is about 12526.8671662152. The cubic root of 156922401 is about 539.3801770298.

The spelling of 156922401 in words is "one hundred fifty-six million, nine hundred twenty-two thousand, four hundred one".