9139497752 has 64 divisors (see below), whose sum is σ = 21715395840. Its totient is φ = 3502454400.

The previous prime is 9139497713. The next prime is 9139497799. The reversal of 9139497752 is 2577949319.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84038 + ... + 159189.

It is an arithmetic number, because the mean of its divisors is an integer number (339303060).

Almost surely, 2^9139497752 is an apocalyptic number.

It is an amenable number.

9139497752 is an abundant number, since it is smaller than the sum of its proper divisors (12575898088).

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

9139497752 is a wasteful number, since it uses less digits than its factorization.

9139497752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243312 (or 243308 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 56.

The square root of 9139497752 is about 95600.7204575363. The cubic root of 9139497752 is about 2090.7756979639.

The spelling of 9139497752 in words is "nine billion, one hundred thirty-nine million, four hundred ninety-seven thousand, seven hundred fifty-two".