1136395993 has 4 divisors (see below), whose sum is σ = 1141781968. Its totient is φ = 1131010020.

The previous prime is 1136395979. The next prime is 1136396021. The reversal of 1136395993 is 3995936311.

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: 3995936311 = 1129 ⋅3539359.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136395993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136395493) 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, 2692671 + ... + 2693092.

It is an arithmetic number, because the mean of its divisors is an integer number (285445492).

Almost surely, 2^1136395993 is an apocalyptic number.

It is an amenable number.

1136395993 is a deficient number, since it is larger than the sum of its proper divisors (5385975).

1136395993 is an equidigital number, since it uses as much as digits as its factorization.

1136395993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385974.

The product of its digits is 590490, while the sum is 49.

The square root of 1136395993 is about 33710.4730462211. The cubic root of 1136395993 is about 1043.5419155721.

The spelling of 1136395993 in words is "one billion, one hundred thirty-six million, three hundred ninety-five thousand, nine hundred ninety-three".