1161545552 has 20 divisors (see below), whose sum is σ = 2257834656. Its totient is φ = 578878560.

The previous prime is 1161545537. The next prime is 1161545569. The reversal of 1161545552 is 2555451611.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113324 + ... + 123147.

Almost surely, 2^1161545552 is an apocalyptic number.

It is an amenable number.

1161545552 is a deficient number, since it is larger than the sum of its proper divisors (1096289104).

1161545552 is a wasteful number, since it uses less digits than its factorization.

1161545552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236786 (or 236780 counting only the distinct ones).

The product of its digits is 30000, while the sum is 35.

The square root of 1161545552 is about 34081.4546637904. The cubic root of 1161545552 is about 1051.1840164387.

The spelling of 1161545552 in words is "one billion, one hundred sixty-one million, five hundred forty-five thousand, five hundred fifty-two".