11512990 has 16 divisors (see below), whose sum is σ = 20930400. Its totient is φ = 4559200.

The previous prime is 11512987. The next prime is 11512999. The reversal of 11512990 is 9921511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512999) 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, 4690 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (1308150).

Almost surely, 2^11512990 is an apocalyptic number.

11512990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11512990 is a deficient number, since it is larger than the sum of its proper divisors (9417410).

11512990 is a wasteful number, since it uses less digits than its factorization.

11512990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 11512990 is about 3393.0797220225. The cubic root of 11512990 is about 225.8028274797.

The spelling of 11512990 in words is "eleven million, five hundred twelve thousand, nine hundred ninety".