4131925 has 18 divisors (see below), whose sum is σ = 5961858. Its totient is φ = 2832480.

The previous prime is 4131923. The next prime is 4131961. The reversal of 4131925 is 5291314.

It can be written as a sum of positive squares in 3 ways, for example, as 1285956 + 2845969 = 1134^2 + 1687^2 .

It is not a de Polignac number, because 4131925 - 2¹ = 4131923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

4131925 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4131925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131923) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 462 + ... + 2911.

Almost surely, 2^4131925 is an apocalyptic number.

It is an amenable number.

4131925 is a deficient number, since it is larger than the sum of its proper divisors (1829933).

4131925 is a wasteful number, since it uses less digits than its factorization.

4131925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3385 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 4131925 is about 2032.7137034024. The cubic root of 4131925 is about 160.4664124876.

The spelling of 4131925 in words is "four million, one hundred thirty-one thousand, nine hundred twenty-five".