1165902133 has 4 divisors (see below), whose sum is σ = 1271893248. Its totient is φ = 1059911020.

The previous prime is 1165902121. The next prime is 1165902169. The reversal of 1165902133 is 3312095611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1165902133 - 2⁹ = 1165901621 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1165902095 and 1165902104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165902103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52995541 + ... + 52995562.

It is an arithmetic number, because the mean of its divisors is an integer number (317973312).

Almost surely, 2^1165902133 is an apocalyptic number.

It is an amenable number.

1165902133 is a deficient number, since it is larger than the sum of its proper divisors (105991115).

1165902133 is a wasteful number, since it uses less digits than its factorization.

1165902133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105991114.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1165902133 is about 34145.3090921725. The cubic root of 1165902133 is about 1052.4965936665.

Adding to 1165902133 its reverse (3312095611), we get a palindrome (4477997744).

The spelling of 1165902133 in words is "one billion, one hundred sixty-five million, nine hundred two thousand, one hundred thirty-three".