156853253 has 2 divisors, whose sum is σ = 156853254. Its totient is φ = 156853252.

The previous prime is 156853217. The next prime is 156853259. The reversal of 156853253 is 352358651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152720164 + 4133089 = 12358^2 + 2033^2 .

It is a cyclic number.

It is not a de Polignac number, because 156853253 - 2¹⁰ = 156852229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156853259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78426626 + 78426627.

It is an arithmetic number, because the mean of its divisors is an integer number (78426627).

Almost surely, 2^156853253 is an apocalyptic number.

It is an amenable number.

156853253 is a deficient number, since it is larger than the sum of its proper divisors (1).

156853253 is an equidigital number, since it uses as much as digits as its factorization.

156853253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The square root of 156853253 is about 12524.1068743444. The cubic root of 156853253 is about 539.3009392666.

The spelling of 156853253 in words is "one hundred fifty-six million, eight hundred fifty-three thousand, two hundred fifty-three".