11399539 has 2 divisors, whose sum is σ = 11399540. Its totient is φ = 11399538.

The previous prime is 11399527. The next prime is 11399551. The reversal of 11399539 is 93599311.

It is a balanced prime because it is at equal distance from previous prime (11399527) and next prime (11399551).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11399539 is a prime.

It is not a weakly prime, because it can be changed into another prime (11399939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5699769 + 5699770.

It is an arithmetic number, because the mean of its divisors is an integer number (5699770).

Almost surely, 2^11399539 is an apocalyptic number.

11399539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11399539 is an equidigital number, since it uses as much as digits as its factorization.

11399539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32805, while the sum is 40.

The square root of 11399539 is about 3376.3203343285. The cubic root of 11399539 is about 225.0586777002.

The spelling of 11399539 in words is "eleven million, three hundred ninety-nine thousand, five hundred thirty-nine".