1165620052 has 12 divisors (see below), whose sum is σ = 2040103296. Its totient is φ = 582733400.

The previous prime is 1165620023. The next prime is 1165620061. The reversal of 1165620052 is 2500265611.

It is a self number, because there is not a number n which added to its sum of digits gives 1165620052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27927 + ... + 55777.

It is an arithmetic number, because the mean of its divisors is an integer number (170008608).

Almost surely, 2^1165620052 is an apocalyptic number.

It is an amenable number.

1165620052 is a deficient number, since it is larger than the sum of its proper divisors (874483244).

1165620052 is a wasteful number, since it uses less digits than its factorization.

1165620052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38318 (or 38316 counting only the distinct ones).

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

The square root of 1165620052 is about 34141.1782456318. The cubic root of 1165620052 is about 1052.4117056844.

Adding to 1165620052 its reverse (2500265611), we get a palindrome (3665885663).

The spelling of 1165620052 in words is "one billion, one hundred sixty-five million, six hundred twenty thousand, fifty-two".