11504961 has 24 divisors (see below), whose sum is σ = 18083520. Its totient is φ = 7006176.

The previous prime is 11504959. The next prime is 11504981. The reversal of 11504961 is 16940511.

11504961 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11504961 - 2¹ = 11504959 is a prime.

It is a super-2 number, since 2×11504961² = 264728255223042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11504921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12060 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^11504961 is an apocalyptic number.

It is an amenable number.

11504961 is a deficient number, since it is larger than the sum of its proper divisors (6578559).

11504961 is a wasteful number, since it uses less digits than its factorization.

11504961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 11504961 is about 3391.8963722378. The cubic root of 11504961 is about 225.7503246832.

The spelling of 11504961 in words is "eleven million, five hundred four thousand, nine hundred sixty-one".