9139537152 has 126 divisors (see below), whose sum is σ = 27353105402. Its totient is φ = 3046450176.

The previous prime is 9139537109. The next prime is 9139537153. The reversal of 9139537152 is 2517359319.

It can be written as a sum of positive squares in only one way, i.e., 5585469696 + 3554067456 = 74736^2 + 59616^2 .

It is a super-2 number, since 2×9139537152² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9139537098 and 9139537107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9139537153) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 162138 + ... + 211110.

Almost surely, 2^9139537152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9139537152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13676552701).

9139537152 is an abundant number, since it is smaller than the sum of its proper divisors (18213568250).

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

9139537152 is an frugal number, since it uses more digits than its factorization.

9139537152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49007 (or 48978 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 9139537152 is about 95600.9265227069. The cubic root of 9139537152 is about 2090.7787023757.

The spelling of 9139537152 in words is "nine billion, one hundred thirty-nine million, five hundred thirty-seven thousand, one hundred fifty-two".