1359918797 has 4 divisors (see below), whose sum is σ = 1359993180. Its totient is φ = 1359844416.

The previous prime is 1359918793. The next prime is 1359918803. The reversal of 1359918797 is 7978199531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7978199531 = 419 ⋅19041049.

It can be written as a sum of positive squares in 2 ways, for example, as 472236361 + 887682436 = 21731^2 + 29794^2 .

It is a cyclic number.

It is not a de Polignac number, because 1359918797 - 2² = 1359918793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1359918793) 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, 11363 + ... + 53375.

It is an arithmetic number, because the mean of its divisors is an integer number (339998295).

Almost surely, 2^1359918797 is an apocalyptic number.

It is an amenable number.

1359918797 is a deficient number, since it is larger than the sum of its proper divisors (74383).

1359918797 is an equidigital number, since it uses as much as digits as its factorization.

1359918797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74382.

The product of its digits is 4286520, while the sum is 59.

The square root of 1359918797 is about 36877.0768499891. The cubic root of 1359918797 is about 1107.9096000851.

The spelling of 1359918797 in words is "one billion, three hundred fifty-nine million, nine hundred eighteen thousand, seven hundred ninety-seven".