11575131 has 8 divisors (see below), whose sum is σ = 15519504. Its totient is φ = 7673760.

The previous prime is 11575103. The next prime is 11575133. The reversal of 11575131 is 13157511.

11575131 is nontrivially palindromic in base 12.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11575131 - 2¹⁰ = 11574107 is a prime.

It is a super-2 number, since 2×11575131² = 267967315334322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11575133) 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, 10116 + ... + 11201.

It is an arithmetic number, because the mean of its divisors is an integer number (1939938).

Almost surely, 2^11575131 is an apocalyptic number.

11575131 is a deficient number, since it is larger than the sum of its proper divisors (3944373).

11575131 is a wasteful number, since it uses less digits than its factorization.

11575131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21501.

The product of its digits is 525, while the sum is 24.

The square root of 11575131 is about 3402.2244194056. The cubic root of 11575131 is about 226.2083532920.

The spelling of 11575131 in words is "eleven million, five hundred seventy-five thousand, one hundred thirty-one".