1297376907 has 4 divisors (see below), whose sum is σ = 1729835880. Its totient is φ = 864917936.

The previous prime is 1297376891. The next prime is 1297376957. The reversal of 1297376907 is 7096737921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1297376907 - 2⁴ = 1297376891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1297376907.

It is not an unprimeable number, because it can be changed into a prime (1297376957) 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, 216229482 + ... + 216229487.

It is an arithmetic number, because the mean of its divisors is an integer number (432458970).

Almost surely, 2^1297376907 is an apocalyptic number.

1297376907 is a deficient number, since it is larger than the sum of its proper divisors (432458973).

1297376907 is an equidigital number, since it uses as much as digits as its factorization.

1297376907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432458972.

The product of its (nonzero) digits is 1000188, while the sum is 51.

The square root of 1297376907 is about 36019.1186316378. The cubic root of 1297376907 is about 1090.6583310881.

The spelling of 1297376907 in words is "one billion, two hundred ninety-seven million, three hundred seventy-six thousand, nine hundred seven".