3125221039 has 2 divisors, whose sum is σ = 3125221040. Its totient is φ = 3125221038.

The previous prime is 3125221007. The next prime is 3125221049. The reversal of 3125221039 is 9301225213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3125221039 - 2⁵ = 3125221007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3125220998 and 3125221016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3125221049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562610519 + 1562610520.

It is an arithmetic number, because the mean of its divisors is an integer number (1562610520).

Almost surely, 2^3125221039 is an apocalyptic number.

3125221039 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125221039 is an equidigital number, since it uses as much as digits as its factorization.

3125221039 is an evil number, because the sum of its binary digits is even.

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

The square root of 3125221039 is about 55903.6764354546. The cubic root of 3125221039 is about 1462.0433387981.

The spelling of 3125221039 in words is "three billion, one hundred twenty-five million, two hundred twenty-one thousand, thirty-nine".