1250245489 has 2 divisors, whose sum is σ = 1250245490. Its totient is φ = 1250245488.

The previous prime is 1250245483. The next prime is 1250245541. The reversal of 1250245489 is 9845420521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 636048400 + 614197089 = 25220^2 + 24783^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250245489 - 2³ = 1250245481 is a prime.

It is a super-2 number, since 2×1250245489² = 3126227565529698242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1250245481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625122744 + 625122745.

It is an arithmetic number, because the mean of its divisors is an integer number (625122745).

Almost surely, 2^1250245489 is an apocalyptic number.

It is an amenable number.

1250245489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250245489 is an equidigital number, since it uses as much as digits as its factorization.

1250245489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1250245489 is about 35358.8106276215. The cubic root of 1250245489 is about 1077.2878590690.

The spelling of 1250245489 in words is "one billion, two hundred fifty million, two hundred forty-five thousand, four hundred eighty-nine".