917149325 has 6 divisors (see below), whose sum is σ = 1137265194. Its totient is φ = 733719440.

The previous prime is 917149309. The next prime is 917149349. The reversal of 917149325 is 523941719.

It can be written as a sum of positive squares in 3 ways, for example, as 10778089 + 906371236 = 3283^2 + 30106^2 .

It is not a de Polignac number, because 917149325 - 2⁴ = 917149309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18342962 + ... + 18343011.

It is an arithmetic number, because the mean of its divisors is an integer number (189544199).

Almost surely, 2^917149325 is an apocalyptic number.

It is an amenable number.

917149325 is a deficient number, since it is larger than the sum of its proper divisors (220115869).

917149325 is a wasteful number, since it uses less digits than its factorization.

917149325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36685983 (or 36685978 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 917149325 is about 30284.4733320558. The cubic root of 917149325 is about 971.5832453445.

The spelling of 917149325 in words is "nine hundred seventeen million, one hundred forty-nine thousand, three hundred twenty-five".