1363815697 has 4 divisors (see below), whose sum is σ = 1364451300. Its totient is φ = 1363180096.

The previous prime is 1363815653. The next prime is 1363815707. The reversal of 1363815697 is 7965183631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7965183631 = 3163 ⋅2518237.

It can be written as a sum of positive squares in 2 ways, for example, as 367718976 + 996096721 = 19176^2 + 31561^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363815697 - 2¹⁵ = 1363782929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1363815697.

It is not an unprimeable number, because it can be changed into a prime (1363815617) 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, 314572 + ... + 318877.

It is an arithmetic number, because the mean of its divisors is an integer number (341112825).

Almost surely, 2^1363815697 is an apocalyptic number.

It is an amenable number.

1363815697 is a deficient number, since it is larger than the sum of its proper divisors (635603).

1363815697 is an equidigital number, since it uses as much as digits as its factorization.

1363815697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635602.

The product of its digits is 816480, while the sum is 49.

The square root of 1363815697 is about 36929.8753991941. The cubic root of 1363815697 is about 1108.9668434975.

The spelling of 1363815697 in words is "one billion, three hundred sixty-three million, eight hundred fifteen thousand, six hundred ninety-seven".