3198120825 has 24 divisors (see below), whose sum is σ = 5307249600. Its totient is φ = 1699312960.

The previous prime is 3198120817. The next prime is 3198120839. The reversal of 3198120825 is 5280218913.

It is not a de Polignac number, because 3198120825 - 2³ = 3198120817 is a prime.

It is a super-2 number, since 2×3198120825² = 20455953622597361250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59085 + ... + 99434.

It is an arithmetic number, because the mean of its divisors is an integer number (221135400).

Almost surely, 2^3198120825 is an apocalyptic number.

It is an amenable number.

3198120825 is a deficient number, since it is larger than the sum of its proper divisors (2109128775).

3198120825 is a wasteful number, since it uses less digits than its factorization.

3198120825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158801 (or 158796 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 3198120825 is about 56551.9303384067. The cubic root of 3198120825 is about 1473.3240871444.

The spelling of 3198120825 in words is "three billion, one hundred ninety-eight million, one hundred twenty thousand, eight hundred twenty-five".