918645925 has 12 divisors (see below), whose sum is σ = 1155167136. Its totient is φ = 724564400.

The previous prime is 918645919. The next prime is 918645977. The reversal of 918645925 is 529546819.

918645925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 918645925 - 2²³ = 910257317 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 11 ways as a sum of consecutive naturals, for example, 256999 + ... + 260548.

It is an arithmetic number, because the mean of its divisors is an integer number (96263928).

Almost surely, 2^918645925 is an apocalyptic number.

It is an amenable number.

918645925 is a deficient number, since it is larger than the sum of its proper divisors (236521211).

918645925 is a wasteful number, since it uses less digits than its factorization.

918645925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517628 (or 517623 counting only the distinct ones).

The product of its digits is 777600, while the sum is 49.

The square root of 918645925 is about 30309.1722915688. The cubic root of 918645925 is about 972.1114331564. Note that the first 3 decimals are identical.

The spelling of 918645925 in words is "nine hundred eighteen million, six hundred forty-five thousand, nine hundred twenty-five".