1250480639 has 2 divisors, whose sum is σ = 1250480640. Its totient is φ = 1250480638.

The previous prime is 1250480617. The next prime is 1250480653. The reversal of 1250480639 is 9360840521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1250480639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250480239) by changing a digit.

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 as a sum of consecutive naturals, namely, 625240319 + 625240320.

It is an arithmetic number, because the mean of its divisors is an integer number (625240320).

Almost surely, 2^1250480639 is an apocalyptic number.

1250480639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250480639 is an equidigital number, since it uses as much as digits as its factorization.

1250480639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1250480639 is about 35362.1356679712. The cubic root of 1250480639 is about 1077.3553947016.

The spelling of 1250480639 in words is "one billion, two hundred fifty million, four hundred eighty thousand, six hundred thirty-nine".