9239125257 has 6 divisors (see below), whose sum is σ = 13345403162. Its totient is φ = 6159416832.

The previous prime is 9239125243. The next prime is 9239125321. The reversal of 9239125257 is 7525219329.

9239125257 is a `hidden beast` number, since 9 + 2 + 391 + 2 + 5 + 257 = 666.

9239125257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8889472656 + 349652601 = 94284^2 + 18699^2 .

It is not a de Polignac number, because 9239125257 - 2⁴ = 9239125241 is a prime.

It is a super-2 number, since 2×9239125257² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9239120257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513284728 + ... + 513284745.

Almost surely, 2^9239125257 is an apocalyptic number.

It is an amenable number.

9239125257 is a deficient number, since it is larger than the sum of its proper divisors (4106277905).

9239125257 is a wasteful number, since it uses less digits than its factorization.

9239125257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026569479 (or 1026569476 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 9239125257 is about 96120.3685854356. The cubic root of 9239125257 is about 2098.3452767531.

The spelling of 9239125257 in words is "nine billion, two hundred thirty-nine million, one hundred twenty-five thousand, two hundred fifty-seven".