536831381 has 2 divisors, whose sum is σ = 536831382. Its totient is φ = 536831380.

The previous prime is 536831359. The next prime is 536831401. The reversal of 536831381 is 183138635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527437156 + 9394225 = 22966^2 + 3065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536831381 is a prime.

It is a super-2 number, since 2×536831381² = 576375863252734322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536831341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268415690 + 268415691.

It is an arithmetic number, because the mean of its divisors is an integer number (268415691).

Almost surely, 2^536831381 is an apocalyptic number.

It is an amenable number.

536831381 is a deficient number, since it is larger than the sum of its proper divisors (1).

536831381 is an equidigital number, since it uses as much as digits as its factorization.

536831381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 536831381 is about 23169.6219433982. The cubic root of 536831381 is about 812.7293899373.

The spelling of 536831381 in words is "five hundred thirty-six million, eight hundred thirty-one thousand, three hundred eighty-one".