11261915 has 24 divisors (see below), whose sum is σ = 16101360. Its totient is φ = 7535808.

The previous prime is 11261911. The next prime is 11261941. The reversal of 11261915 is 51916211.

It is not a de Polignac number, because 11261915 - 2² = 11261911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11261911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10001 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (670890).

Almost surely, 2^11261915 is an apocalyptic number.

11261915 is a deficient number, since it is larger than the sum of its proper divisors (4839445).

11261915 is a wasteful number, since it uses less digits than its factorization.

11261915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1124 counting only the distinct ones).

The product of its digits is 540, while the sum is 26.

The square root of 11261915 is about 3355.8776795348. The cubic root of 11261915 is about 224.1493145099.

The spelling of 11261915 in words is "eleven million, two hundred sixty-one thousand, nine hundred fifteen".