3921023125 has 10 divisors (see below), whose sum is σ = 4899711278. Its totient is φ = 3136818000.

The previous prime is 3921023077. The next prime is 3921023131. The reversal of 3921023125 is 5213201293.

It can be written as a sum of positive squares in 5 ways, for example, as 974813284 + 2946209841 = 31222^2 + 54279^2 .

It is not a de Polignac number, because 3921023125 - 2⁷ = 3921022997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3921023093 and 3921023102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3136194 + ... + 3137443.

Almost surely, 2^3921023125 is an apocalyptic number.

It is an amenable number.

3921023125 is a deficient number, since it is larger than the sum of its proper divisors (978688153).

3921023125 is an frugal number, since it uses more digits than its factorization.

3921023125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273657 (or 6273642 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3921023125 is about 62618.0734692469. The cubic root of 3921023125 is about 1576.8841983505.

The spelling of 3921023125 in words is "three billion, nine hundred twenty-one million, twenty-three thousand, one hundred twenty-five".