1136031989 has 2 divisors, whose sum is σ = 1136031990. Its totient is φ = 1136031988.

The previous prime is 1136031943. The next prime is 1136032019. The reversal of 1136031989 is 9891306311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805992100 + 330039889 = 28390^2 + 18167^2 .

It is a cyclic number.

It is not a de Polignac number, because 1136031989 - 2²⁸ = 867596533 is a prime.

It is a super-2 number, since 2×1136031989² = 2581137360062592242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136231989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568015994 + 568015995.

It is an arithmetic number, because the mean of its divisors is an integer number (568015995).

Almost surely, 2^1136031989 is an apocalyptic number.

It is an amenable number.

1136031989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136031989 is an equidigital number, since it uses as much as digits as its factorization.

1136031989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1136031989 is about 33705.0736388455. The cubic root of 1136031989 is about 1043.4304831728.

The spelling of 1136031989 in words is "one billion, one hundred thirty-six million, thirty-one thousand, nine hundred eighty-nine".