105645925 has 24 divisors (see below), whose sum is σ = 163328832. Its totient is φ = 65856000.

The previous prime is 105645919. The next prime is 105645929. The reversal of 105645925 is 529546501.

It is not a de Polignac number, because 105645925 - 2¹³ = 105637733 is a prime.

It is a super-2 number, since 2×105645925² = 22322122938211250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105645929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25516 + ... + 29365.

It is an arithmetic number, because the mean of its divisors is an integer number (6805368).

Almost surely, 2^105645925 is an apocalyptic number.

It is an amenable number.

105645925 is a deficient number, since it is larger than the sum of its proper divisors (57682907).

105645925 is a wasteful number, since it uses less digits than its factorization.

105645925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54909 (or 54904 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 105645925 is about 10278.4203552881. The cubic root of 105645925 is about 472.7348104579.

The spelling of 105645925 in words is "one hundred five million, six hundred forty-five thousand, nine hundred twenty-five".