9138012975 has 240 divisors, whose sum is σ = 22065962688. Its totient is φ = 3627970560.

The previous prime is 9138012973. The next prime is 9138012997. The reversal of 9138012975 is 5792108319.

It is not a de Polignac number, because 9138012975 - 2¹ = 9138012973 is a prime.

It is a super-2 number, since 2×9138012975² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9138012975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138012973) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 3131217 + ... + 3134133.

Almost surely, 2^9138012975 is an apocalyptic number.

9138012975 is an abundant number, since it is smaller than the sum of its proper divisors (12927949713).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9138012975 is a wasteful number, since it uses less digits than its factorization.

9138012975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 9138012975 is about 95592.9546305584. The cubic root of 9138012975 is about 2090.6624713266.

The spelling of 9138012975 in words is "nine billion, one hundred thirty-eight million, twelve thousand, nine hundred seventy-five".