9120752431 has 8 divisors (see below), whose sum is σ = 10435066880. Its totient is φ = 7809275448.

The previous prime is 9120752401. The next prime is 9120752441. The reversal of 9120752431 is 1342570219.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9120752431 - 2²³ = 9112363823 is a prime.

It is a super-2 number, since 2×9120752431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120752401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702471 + ... + 715336.

It is an arithmetic number, because the mean of its divisors is an integer number (1304383360).

Almost surely, 2^9120752431 is an apocalyptic number.

9120752431 is a deficient number, since it is larger than the sum of its proper divisors (1314314449).

9120752431 is a wasteful number, since it uses less digits than its factorization.

9120752431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418733.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 9120752431 is about 95502.6304925681. The cubic root of 9120752431 is about 2089.3453098478.

The spelling of 9120752431 in words is "nine billion, one hundred twenty million, seven hundred fifty-two thousand, four hundred thirty-one".