156490994 has 16 divisors (see below), whose sum is σ = 258196896. Its totient is φ = 71131060.

The previous prime is 156490993. The next prime is 156491017. The reversal of 156490994 is 499094651.

156490994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156490991) 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, 26732 + ... + 32055.

It is an arithmetic number, because the mean of its divisors is an integer number (16137306).

Almost surely, 2^156490994 is an apocalyptic number.

156490994 is a deficient number, since it is larger than the sum of its proper divisors (101705902).

156490994 is an equidigital number, since it uses as much as digits as its factorization.

156490994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58822 (or 58800 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 156490994 is about 12509.6360458648. The cubic root of 156490994 is about 538.8854400428.

The spelling of 156490994 in words is "one hundred fifty-six million, four hundred ninety thousand, nine hundred ninety-four".