42264539 has 2 divisors, whose sum is σ = 42264540. Its totient is φ = 42264538.

The previous prime is 42264529. The next prime is 42264553. The reversal of 42264539 is 93546224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42264539 - 2⁸ = 42264283 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42264499 and 42264508.

It is not a weakly prime, because it can be changed into another prime (42264529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21132269 + 21132270.

It is an arithmetic number, because the mean of its divisors is an integer number (21132270).

Almost surely, 2^42264539 is an apocalyptic number.

42264539 is a deficient number, since it is larger than the sum of its proper divisors (1).

42264539 is an equidigital number, since it uses as much as digits as its factorization.

42264539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 42264539 is about 6501.1182884178. The cubic root of 42264539 is about 348.3309349183.

The spelling of 42264539 in words is "forty-two million, two hundred sixty-four thousand, five hundred thirty-nine".