1297813413 has 8 divisors (see below), whose sum is σ = 1863527008. Its totient is φ = 798654384.

The previous prime is 1297813409. The next prime is 1297813417. The reversal of 1297813413 is 3143187921.

It is an interprime number because it is at equal distance from previous prime (1297813409) and next prime (1297813417).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1297813413 - 2² = 1297813409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 33277267 = 1297813413 / (1 + 2 + 9 + 7 + 8 + 1 + 3 + 4 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297813417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16638595 + ... + 16638672.

It is an arithmetic number, because the mean of its divisors is an integer number (232940876).

Almost surely, 2^1297813413 is an apocalyptic number.

1297813413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1297813413 is a deficient number, since it is larger than the sum of its proper divisors (565713595).

1297813413 is a wasteful number, since it uses less digits than its factorization.

1297813413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33277283.

The product of its digits is 36288, while the sum is 39.

The square root of 1297813413 is about 36025.1774874184. The cubic root of 1297813413 is about 1090.7806356963.

The spelling of 1297813413 in words is "one billion, two hundred ninety-seven million, eight hundred thirteen thousand, four hundred thirteen".