11491959 has 8 divisors (see below), whose sum is σ = 15362800. Its totient is φ = 7641216.

The previous prime is 11491957. The next prime is 11491967. The reversal of 11491959 is 95919411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11491959 - 2¹ = 11491957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3634 + ... + 6015.

It is an arithmetic number, because the mean of its divisors is an integer number (1920350).

Almost surely, 2^11491959 is an apocalyptic number.

11491959 is a deficient number, since it is larger than the sum of its proper divisors (3870841).

11491959 is an equidigital number, since it uses as much as digits as its factorization.

11491959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10049.

The product of its digits is 14580, while the sum is 39.

The square root of 11491959 is about 3389.9792034760. The cubic root of 11491959 is about 225.6652508868.

The spelling of 11491959 in words is "eleven million, four hundred ninety-one thousand, nine hundred fifty-nine".