4139925 has 36 divisors (see below), whose sum is σ = 7309056. Its totient is φ = 2067200.

The previous prime is 4139923. The next prime is 4139951. The reversal of 4139925 is 5299314.

It is not a de Polignac number, because 4139925 - 2¹ = 4139923 is a prime.

Its product of digits (9720) is a multiple of the sum of its prime divisors (216).

4139925 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4139921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21580 + ... + 21770.

Almost surely, 2^4139925 is an apocalyptic number.

It is an amenable number.

4139925 is a deficient number, since it is larger than the sum of its proper divisors (3169131).

4139925 is a wasteful number, since it uses less digits than its factorization.

4139925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 216 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 4139925 is about 2034.6805646096. The cubic root of 4139925 is about 160.5699077264.

The spelling of 4139925 in words is "four million, one hundred thirty-nine thousand, nine hundred twenty-five".