11542939 has 2 divisors, whose sum is σ = 11542940. Its totient is φ = 11542938.

The previous prime is 11542931. The next prime is 11542997. The reversal of 11542939 is 93924511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11542939 - 2³ = 11542931 is a prime.

It is not a weakly prime, because it can be changed into another prime (11542931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771469 + 5771470.

It is an arithmetic number, because the mean of its divisors is an integer number (5771470).

Almost surely, 2^11542939 is an apocalyptic number.

11542939 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542939 is an equidigital number, since it uses as much as digits as its factorization.

11542939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 11542939 is about 3397.4901030025. The cubic root of 11542939 is about 225.9984532747.

The spelling of 11542939 in words is "eleven million, five hundred forty-two thousand, nine hundred thirty-nine".