1165026499 has 24 divisors (see below), whose sum is σ = 1471077888. Its totient is φ = 914457600.

The previous prime is 1165026487. The next prime is 1165026523. The reversal of 1165026499 is 9946205611.

It is not a de Polignac number, because 1165026499 - 2¹⁹ = 1164502211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165026799) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73699 + ... + 88099.

It is an arithmetic number, because the mean of its divisors is an integer number (61294912).

Almost surely, 2^1165026499 is an apocalyptic number.

1165026499 is a deficient number, since it is larger than the sum of its proper divisors (306051389).

1165026499 is a wasteful number, since it uses less digits than its factorization.

1165026499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14555 (or 14548 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1165026499 is about 34132.4845125578. The cubic root of 1165026499 is about 1052.2330402083.

The spelling of 1165026499 in words is "one billion, one hundred sixty-five million, twenty-six thousand, four hundred ninety-nine".