1363116397 has 4 divisors (see below), whose sum is σ = 1363618620. Its totient is φ = 1362614176.

The previous prime is 1363116341. The next prime is 1363116437. The reversal of 1363116397 is 7936113631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 885300516 + 477815881 = 29754^2 + 21859^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363116397 - 2⁷ = 1363116269 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 (1363116197) 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, 247018 + ... + 252475.

It is an arithmetic number, because the mean of its divisors is an integer number (340904655).

Almost surely, 2^1363116397 is an apocalyptic number.

It is an amenable number.

1363116397 is a deficient number, since it is larger than the sum of its proper divisors (502223).

1363116397 is an equidigital number, since it uses as much as digits as its factorization.

1363116397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502222.

The product of its digits is 61236, while the sum is 40.

The square root of 1363116397 is about 36920.4062409936. The cubic root of 1363116397 is about 1108.7772692268. Note that the first 3 decimals are identical.

The spelling of 1363116397 in words is "one billion, three hundred sixty-three million, one hundred sixteen thousand, three hundred ninety-seven".