1140665365 has 16 divisors (see below), whose sum is σ = 1596268800. Its totient is φ = 782169360.

The previous prime is 1140665353. The next prime is 1140665377. The reversal of 1140665365 is 5635660411.

It is an interprime number because it is at equal distance from previous prime (1140665353) and next prime (1140665377).

It is not a de Polignac number, because 1140665365 - 2⁵ = 1140665333 is a prime.

It is a super-2 number, since 2×1140665365² = 2602234949821166450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330841 + ... + 334270.

It is an arithmetic number, because the mean of its divisors is an integer number (99766800).

Almost surely, 2^1140665365 is an apocalyptic number.

It is an amenable number.

1140665365 is a deficient number, since it is larger than the sum of its proper divisors (455603435).

1140665365 is an frugal number, since it uses more digits than its factorization.

1140665365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665137 (or 665123 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1140665365 is about 33773.7378002495. The cubic root of 1140665365 is about 1044.8471239930.

The spelling of 1140665365 in words is "one billion, one hundred forty million, six hundred sixty-five thousand, three hundred sixty-five".