11752731 has 12 divisors (see below), whose sum is σ = 17006080. Its totient is φ = 7821360.

The previous prime is 11752723. The next prime is 11752739. The reversal of 11752731 is 13725711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11752723) and next prime (11752739).

It is not a de Polignac number, because 11752731 - 2³ = 11752723 is a prime.

It is a super-2 number, since 2×11752731² = 276253371916722, 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 = 11752695 and 11752704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11752739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8550 + ... + 9828.

Almost surely, 2^11752731 is an apocalyptic number.

11752731 is a deficient number, since it is larger than the sum of its proper divisors (5253349).

11752731 is a wasteful number, since it uses less digits than its factorization.

11752731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306 (or 2303 counting only the distinct ones).

The product of its digits is 1470, while the sum is 27.

The square root of 11752731 is about 3428.2256343479. The cubic root of 11752731 is about 227.3594091704.

The spelling of 11752731 in words is "eleven million, seven hundred fifty-two thousand, seven hundred thirty-one".