1165431052 has 36 divisors (see below), whose sum is σ = 2084995080. Its totient is φ = 569953152.

The previous prime is 1165431049. The next prime is 1165431061. The reversal of 1165431052 is 2501345611.

It is a self number, because there is not a number n which added to its sum of digits gives 1165431052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6510699 + ... + 6510877.

It is an arithmetic number, because the mean of its divisors is an integer number (57916530).

Almost surely, 2^1165431052 is an apocalyptic number.

It is an amenable number.

1165431052 is a deficient number, since it is larger than the sum of its proper divisors (919564028).

1165431052 is a wasteful number, since it uses less digits than its factorization.

1165431052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1165431052 is about 34138.4102148884. The cubic root of 1165431052 is about 1052.3548213496.

Adding to 1165431052 its reverse (2501345611), we get a palindrome (3666776663).

The spelling of 1165431052 in words is "one billion, one hundred sixty-five million, four hundred thirty-one thousand, fifty-two".