11645959 has 12 divisors (see below), whose sum is σ = 12728016. Its totient is φ = 10650432.

The previous prime is 11645941. The next prime is 11645971. The reversal of 11645959 is 95954611.

It is not a de Polignac number, because 11645959 - 2⁷ = 11645831 is a prime.

It is a super-2 number, since 2×11645959² = 271256722059362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22902 + ... + 23404.

It is an arithmetic number, because the mean of its divisors is an integer number (1060668).

Almost surely, 2^11645959 is an apocalyptic number.

11645959 is a deficient number, since it is larger than the sum of its proper divisors (1082057).

11645959 is a wasteful number, since it uses less digits than its factorization.

11645959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 653 counting only the distinct ones).

The product of its digits is 48600, while the sum is 40.

The square root of 11645959 is about 3412.6176170207. The cubic root of 11645959 is about 226.6688035650.

The spelling of 11645959 in words is "eleven million, six hundred forty-five thousand, nine hundred fifty-nine".