1297791453 has 16 divisors (see below), whose sum is σ = 1978342016. Its totient is φ = 741312000.

The previous prime is 1297791449. The next prime is 1297791457. The reversal of 1297791453 is 3541977921.

It is an interprime number because it is at equal distance from previous prime (1297791449) and next prime (1297791457).

It is not a de Polignac number, because 1297791453 - 2² = 1297791449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297791457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52725 + ... + 73317.

It is an arithmetic number, because the mean of its divisors is an integer number (123646376).

Almost surely, 2^1297791453 is an apocalyptic number.

It is an amenable number.

1297791453 is a deficient number, since it is larger than the sum of its proper divisors (680550563).

1297791453 is a wasteful number, since it uses less digits than its factorization.

1297791453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23604.

The product of its digits is 476280, while the sum is 48.

The square root of 1297791453 is about 36024.8726992893. The cubic root of 1297791453 is about 1090.7744833794.

The spelling of 1297791453 in words is "one billion, two hundred ninety-seven million, seven hundred ninety-one thousand, four hundred fifty-three".