11712513 has 8 divisors (see below), whose sum is σ = 16120576. Its totient is φ = 7556400.

The previous prime is 11712499. The next prime is 11712517. The reversal of 11712513 is 31521711.

It is a happy number.

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

It is not a de Polignac number, because 11712513 - 2⁸ = 11712257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11712513.

It is not an unprimeable number, because it can be changed into a prime (11712517) 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, 62878 + ... + 63063.

It is an arithmetic number, because the mean of its divisors is an integer number (2015072).

Almost surely, 2^11712513 is an apocalyptic number.

It is an amenable number.

11712513 is a deficient number, since it is larger than the sum of its proper divisors (4408063).

11712513 is a wasteful number, since it uses less digits than its factorization.

11712513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125975.

The product of its digits is 210, while the sum is 21.

The square root of 11712513 is about 3422.3548910071. The cubic root of 11712513 is about 227.0997704867.

The spelling of 11712513 in words is "eleven million, seven hundred twelve thousand, five hundred thirteen".