2139007225 has 12 divisors (see below), whose sum is σ = 2664946000. Its totient is φ = 1703091600.

The previous prime is 2139007207. The next prime is 2139007229. The reversal of 2139007225 is 5227009312.

It is not a de Polignac number, because 2139007225 - 2⁹ = 2139006713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2139007229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197475 + ... + 208024.

Almost surely, 2^2139007225 is an apocalyptic number.

2139007225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2139007225 is a deficient number, since it is larger than the sum of its proper divisors (525938775).

2139007225 is a wasteful number, since it uses less digits than its factorization.

2139007225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405720 (or 405715 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2139007225 is about 46249.4024285720. The cubic root of 2139007225 is about 1288.4594363007.

The spelling of 2139007225 in words is "two billion, one hundred thirty-nine million, seven thousand, two hundred twenty-five".