156364393 has 2 divisors, whose sum is σ = 156364394. Its totient is φ = 156364392.

The previous prime is 156364349. The next prime is 156364423. The reversal of 156364393 is 393463651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143712144 + 12652249 = 11988^2 + 3557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156364393 is a prime.

It is not a weakly prime, because it can be changed into another prime (156364333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78182196 + 78182197.

It is an arithmetic number, because the mean of its divisors is an integer number (78182197).

Almost surely, 2^156364393 is an apocalyptic number.

It is an amenable number.

156364393 is a deficient number, since it is larger than the sum of its proper divisors (1).

156364393 is an equidigital number, since it uses as much as digits as its factorization.

156364393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 40.

The square root of 156364393 is about 12504.5748828179. The cubic root of 156364393 is about 538.7400816430.

It can be divided in two parts, 1563 and 64393, that added together give a palindrome (65956).

The spelling of 156364393 in words is "one hundred fifty-six million, three hundred sixty-four thousand, three hundred ninety-three".