3913140625 has 14 divisors (see below), whose sum is σ = 4891382702. Its totient is φ = 3130500000.

The previous prime is 3913140613. The next prime is 3913140641. The reversal of 3913140625 is 5260413193.

It can be written as a sum of positive squares in 7 ways, for example, as 3531211776 + 381928849 = 59424^2 + 19543^2 .

It is not a de Polignac number, because 3913140625 - 2⁵ = 3913140593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 109596 + ... + 140845.

Almost surely, 2^3913140625 is an apocalyptic number.

It is an amenable number.

3913140625 is a deficient number, since it is larger than the sum of its proper divisors (978242077).

3913140625 is an frugal number, since it uses more digits than its factorization.

3913140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250471 (or 250446 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3913140625 is about 62555.1007112929. The cubic root of 3913140625 is about 1575.8268103606.

The spelling of 3913140625 in words is "three billion, nine hundred thirteen million, one hundred forty thousand, six hundred twenty-five".