1132390865 has 8 divisors (see below), whose sum is σ = 1359310248. Its totient is φ = 905618560.

The previous prime is 1132390837. The next prime is 1132390879. The reversal of 1132390865 is 5680932311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6385729 + 1126005136 = 2527^2 + 33556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1132390865 is a prime.

It is a super-2 number, since 2×1132390865² = 2564618142270896450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19052 + ... + 51261.

It is an arithmetic number, because the mean of its divisors is an integer number (169913781).

Almost surely, 2^1132390865 is an apocalyptic number.

It is an amenable number.

1132390865 is a deficient number, since it is larger than the sum of its proper divisors (226919383).

1132390865 is an equidigital number, since it uses as much as digits as its factorization.

1132390865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73539.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 1132390865 is about 33651.0158093333. The cubic root of 1132390865 is about 1042.3145151695.

The spelling of 1132390865 in words is "one billion, one hundred thirty-two million, three hundred ninety thousand, eight hundred sixty-five".