11368531 has 2 divisors, whose sum is σ = 11368532. Its totient is φ = 11368530.

The previous prime is 11368523. The next prime is 11368541. The reversal of 11368531 is 13586311.

11368531 = 1374² + 1375² + ... + 1379².

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11368531 - 2³ = 11368523 is a prime.

It is a super-2 number, since 2×11368531² = 258486994195922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11368531.

It is not a weakly prime, because it can be changed into another prime (11368541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5684265 + 5684266.

It is an arithmetic number, because the mean of its divisors is an integer number (5684266).

Almost surely, 2^11368531 is an apocalyptic number.

11368531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11368531 is an equidigital number, since it uses as much as digits as its factorization.

11368531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 11368531 is about 3371.7252260527. The cubic root of 11368531 is about 224.8544309439.

It can be divided in two parts, 113 and 68531, that added together give a square (68644 = 262²).

The spelling of 11368531 in words is "eleven million, three hundred sixty-eight thousand, five hundred thirty-one".