11942531 has 2 divisors, whose sum is σ = 11942532. Its totient is φ = 11942530.

The previous prime is 11942503. The next prime is 11942597. The reversal of 11942531 is 13524911.

11942531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11942531 - 2²² = 7748227 is a prime.

It is a super-2 number, since 2×11942531² = 285248093371922, 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 11942531.

It is not a weakly prime, because it can be changed into another prime (11942501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5971265 + 5971266.

It is an arithmetic number, because the mean of its divisors is an integer number (5971266).

Almost surely, 2^11942531 is an apocalyptic number.

11942531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11942531 is an equidigital number, since it uses as much as digits as its factorization.

11942531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 11942531 is about 3455.7967243459. The cubic root of 11942531 is about 228.5767880626.

The spelling of 11942531 in words is "eleven million, nine hundred forty-two thousand, five hundred thirty-one".