1165380237 has 32 divisors (see below), whose sum is σ = 1975823360. Its totient is φ = 665022960.

The previous prime is 1165380221. The next prime is 1165380239. The reversal of 1165380237 is 7320835611.

1165380237 is a `hidden beast` number, since 116 + 538 + 0 + 2 + 3 + 7 = 666.

It is not a de Polignac number, because 1165380237 - 2⁴ = 1165380221 is a prime.

It is a super-2 number, since 2×1165380237² = 2716222193580352338, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165380239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149478 + ... + 157080.

It is an arithmetic number, because the mean of its divisors is an integer number (61744480).

Almost surely, 2^1165380237 is an apocalyptic number.

It is an amenable number.

1165380237 is a deficient number, since it is larger than the sum of its proper divisors (810443123).

1165380237 is an equidigital number, since it uses as much as digits as its factorization.

1165380237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430 (or 8424 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1165380237 is about 34137.6659571213. The cubic root of 1165380237 is about 1052.3395262399.

The spelling of 1165380237 in words is "one billion, one hundred sixty-five million, three hundred eighty thousand, two hundred thirty-seven".