1297948373 has 4 divisors (see below), whose sum is σ = 1316229408. Its totient is φ = 1279667340.

The previous prime is 1297948363. The next prime is 1297948391. The reversal of 1297948373 is 3738497921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1297948373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297948313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9140411 + ... + 9140552.

It is an arithmetic number, because the mean of its divisors is an integer number (329057352).

Almost surely, 2^1297948373 is an apocalyptic number.

It is an amenable number.

1297948373 is a deficient number, since it is larger than the sum of its proper divisors (18281035).

1297948373 is an equidigital number, since it uses as much as digits as its factorization.

1297948373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18281034.

The product of its digits is 2286144, while the sum is 53.

The square root of 1297948373 is about 36027.0505731457. The cubic root of 1297948373 is about 1090.8184445858.

The spelling of 1297948373 in words is "one billion, two hundred ninety-seven million, nine hundred forty-eight thousand, three hundred seventy-three".