156197053 has 2 divisors, whose sum is σ = 156197054. Its totient is φ = 156197052.

The previous prime is 156197021. The next prime is 156197057. The reversal of 156197053 is 350791651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118962649 + 37234404 = 10907^2 + 6102^2 .

It is a cyclic number.

It is not a de Polignac number, because 156197053 - 2⁵ = 156197021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156197057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78098526 + 78098527.

It is an arithmetic number, because the mean of its divisors is an integer number (78098527).

Almost surely, 2^156197053 is an apocalyptic number.

It is an amenable number.

156197053 is a deficient number, since it is larger than the sum of its proper divisors (1).

156197053 is an equidigital number, since it uses as much as digits as its factorization.

156197053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 156197053 is about 12497.8819405530. The cubic root of 156197053 is about 538.5478278463.

The spelling of 156197053 in words is "one hundred fifty-six million, one hundred ninety-seven thousand, fifty-three".