11952291 has 16 divisors (see below), whose sum is σ = 17295264. Its totient is φ = 7298304.

The previous prime is 11952257. The next prime is 11952293. The reversal of 11952291 is 19225911.

It is not a de Polignac number, because 11952291 - 2⁷ = 11952163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11952293) 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 15 ways as a sum of consecutive naturals, for example, 4225 + ... + 6461.

It is an arithmetic number, because the mean of its divisors is an integer number (1080954).

Almost surely, 2^11952291 is an apocalyptic number.

11952291 is a deficient number, since it is larger than the sum of its proper divisors (5342973).

11952291 is a wasteful number, since it uses less digits than its factorization.

11952291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390.

The product of its digits is 1620, while the sum is 30.

The square root of 11952291 is about 3457.2085560463. The cubic root of 11952291 is about 228.6390390207.

It can be divided in two parts, 1195 and 2291, that added together give a triangular number (3486 = T₈₃).

The spelling of 11952291 in words is "eleven million, nine hundred fifty-two thousand, two hundred ninety-one".