1539671225 has 12 divisors (see below), whose sum is σ = 1910502720. Its totient is φ = 1230891600.

The previous prime is 1539671207. The next prime is 1539671239. The reversal of 1539671225 is 5221769351.

It is not a de Polignac number, because 1539671225 - 2¹⁰ = 1539670201 is a prime.

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, 17396 + ... + 58154.

It is an arithmetic number, because the mean of its divisors is an integer number (159208560).

Almost surely, 2^1539671225 is an apocalyptic number.

It is an amenable number.

1539671225 is a deficient number, since it is larger than the sum of its proper divisors (370831495).

1539671225 is a wasteful number, since it uses less digits than its factorization.

1539671225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42280 (or 42275 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 1539671225 is about 39238.6445357125. The cubic root of 1539671225 is about 1154.7181649004.

The spelling of 1539671225 in words is "one billion, five hundred thirty-nine million, six hundred seventy-one thousand, two hundred twenty-five".