1249597963 has 2 divisors, whose sum is σ = 1249597964. Its totient is φ = 1249597962.

The previous prime is 1249597919. The next prime is 1249597967. The reversal of 1249597963 is 3697959421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1249597963 - 2⁹ = 1249597451 is a prime.

It is a super-2 number, since 2×1249597963² = 3122990138267498738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1249597967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624798981 + 624798982.

It is an arithmetic number, because the mean of its divisors is an integer number (624798982).

Almost surely, 2^1249597963 is an apocalyptic number.

1249597963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249597963 is an equidigital number, since it uses as much as digits as its factorization.

1249597963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 55.

The square root of 1249597963 is about 35349.6529403048. The cubic root of 1249597963 is about 1077.1018443043.

The spelling of 1249597963 in words is "one billion, two hundred forty-nine million, five hundred ninety-seven thousand, nine hundred sixty-three".