11604531 has 4 divisors (see below), whose sum is σ = 15472712. Its totient is φ = 7736352.

The previous prime is 11604521. The next prime is 11604559. The reversal of 11604531 is 13540611.

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

It is not a de Polignac number, because 11604531 - 2¹⁷ = 11473459 is a prime.

It is a super-2 number, since 2×11604531² = 269330279459922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11604498 and 11604507.

It is not an unprimeable number, because it can be changed into a prime (11604521) 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, 1934086 + ... + 1934091.

It is an arithmetic number, because the mean of its divisors is an integer number (3868178).

Almost surely, 2^11604531 is an apocalyptic number.

11604531 is a deficient number, since it is larger than the sum of its proper divisors (3868181).

11604531 is an equidigital number, since it uses as much as digits as its factorization.

11604531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868180.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 11604531 is about 3406.5423819468. The cubic root of 11604531 is about 226.3997090213.

The spelling of 11604531 in words is "eleven million, six hundred four thousand, five hundred thirty-one".