156490945 has 32 divisors (see below), whose sum is σ = 214502400. Its totient is φ = 108760320.

The previous prime is 156490937. The next prime is 156490949. The reversal of 156490945 is 549094651.

156490945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156490945 - 2³ = 156490937 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (156490949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73506 + ... + 75604.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2^156490945 is an apocalyptic number.

It is an amenable number.

156490945 is a deficient number, since it is larger than the sum of its proper divisors (58011455).

156490945 is a wasteful number, since it uses less digits than its factorization.

156490945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 156490945 is about 12509.6340873744. The cubic root of 156490945 is about 538.8853837981.

The spelling of 156490945 in words is "one hundred fifty-six million, four hundred ninety thousand, nine hundred forty-five".