1165749325 has 18 divisors (see below), whose sum is σ = 1565282814. Its totient is φ = 860857920.

The previous prime is 1165749301. The next prime is 1165749331. The reversal of 1165749325 is 5239475611.

It can be written as a sum of positive squares in 9 ways, for example, as 604864836 + 560884489 = 24594^2 + 23683^2 .

It is not a de Polignac number, because 1165749325 - 2⁵ = 1165749293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 133734 + ... + 142183.

Almost surely, 2^1165749325 is an apocalyptic number.

It is an amenable number.

1165749325 is a deficient number, since it is larger than the sum of its proper divisors (399533489).

1165749325 is a wasteful number, since it uses less digits than its factorization.

1165749325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275953 (or 275935 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 1165749325 is about 34143.0714054843. The cubic root of 1165749325 is about 1052.4506101253.

The spelling of 1165749325 in words is "one billion, one hundred sixty-five million, seven hundred forty-nine thousand, three hundred twenty-five".