11292591 has 4 divisors (see below), whose sum is σ = 15056792. Its totient is φ = 7528392.

The previous prime is 11292583. The next prime is 11292599. The reversal of 11292591 is 19529211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11292583) and next prime (11292599).

It is not a de Polignac number, because 11292591 - 2³ = 11292583 is a prime.

It is a super-2 number, since 2×11292591² = 255045222986562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11292599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882096 + ... + 1882101.

It is an arithmetic number, because the mean of its divisors is an integer number (3764198).

Almost surely, 2^11292591 is an apocalyptic number.

11292591 is a deficient number, since it is larger than the sum of its proper divisors (3764201).

11292591 is an equidigital number, since it uses as much as digits as its factorization.

11292591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764200.

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

The square root of 11292591 is about 3360.4450598098. The cubic root of 11292591 is about 224.3526479183.

The spelling of 11292591 in words is "eleven million, two hundred ninety-two thousand, five hundred ninety-one".