1313498297 has 4 divisors (see below), whose sum is σ = 1335761040. Its totient is φ = 1291235556.

The previous prime is 1313498281. The next prime is 1313498309. The reversal of 1313498297 is 7928943131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7928943131 = 61987 ⋅127913.

It is a cyclic number.

It is not a de Polignac number, because 1313498297 - 2⁴ = 1313498281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313498227) 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, 11131283 + ... + 11131400.

It is an arithmetic number, because the mean of its divisors is an integer number (333940260).

Almost surely, 2^1313498297 is an apocalyptic number.

It is an amenable number.

1313498297 is a deficient number, since it is larger than the sum of its proper divisors (22262743).

1313498297 is an equidigital number, since it uses as much as digits as its factorization.

1313498297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22262742.

The product of its digits is 326592, while the sum is 47.

The square root of 1313498297 is about 36242.2170541483. The cubic root of 1313498297 is about 1095.1573057855.

The spelling of 1313498297 in words is "one billion, three hundred thirteen million, four hundred ninety-eight thousand, two hundred ninety-seven".