156400945 has 8 divisors (see below), whose sum is σ = 188833536. Its totient is φ = 124352496.

The previous prime is 156400931. The next prime is 156400997. The reversal of 156400945 is 549004651.

156400945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 156400945 - 2¹⁷ = 156269873 is a prime.

It is a super-2 number, since 2×156400945² = 48922511193786050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156400945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95137 + ... + 96766.

It is an arithmetic number, because the mean of its divisors is an integer number (23604192).

Almost surely, 2^156400945 is an apocalyptic number.

It is an amenable number.

156400945 is a deficient number, since it is larger than the sum of its proper divisors (32432591).

156400945 is a wasteful number, since it uses less digits than its factorization.

156400945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192071.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 156400945 is about 12506.0363425028. The cubic root of 156400945 is about 538.7820572976.

The spelling of 156400945 in words is "one hundred fifty-six million, four hundred thousand, nine hundred forty-five".