156490913 has 2 divisors, whose sum is σ = 156490914. Its totient is φ = 156490912.

The previous prime is 156490909. The next prime is 156490937. The reversal of 156490913 is 319094651.

156490913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139901584 + 16589329 = 11828^2 + 4073^2 .

It is a cyclic number.

It is not a de Polignac number, because 156490913 - 2² = 156490909 is a prime.

It is not a weakly prime, because it can be changed into another prime (156490993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78245456 + 78245457.

It is an arithmetic number, because the mean of its divisors is an integer number (78245457).

Almost surely, 2^156490913 is an apocalyptic number.

It is an amenable number.

156490913 is a deficient number, since it is larger than the sum of its proper divisors (1).

156490913 is an equidigital number, since it uses as much as digits as its factorization.

156490913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 156490913 is about 12509.6328083601. The cubic root of 156490913 is about 538.8853470668.

The spelling of 156490913 in words is "one hundred fifty-six million, four hundred ninety thousand, nine hundred thirteen".