1153661932 has 6 divisors (see below), whose sum is σ = 2018908388. Its totient is φ = 576830964.

The previous prime is 1153661923. The next prime is 1153661933. The reversal of 1153661932 is 2391663511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1153661891 and 1153661900.

It is not an unprimeable number, because it can be changed into a prime (1153661933) by changing a digit.

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 as a sum of consecutive naturals, namely, 144207738 + ... + 144207745.

Almost surely, 2^1153661932 is an apocalyptic number.

It is an amenable number.

1153661932 is a deficient number, since it is larger than the sum of its proper divisors (865246456).

1153661932 is a wasteful number, since it uses less digits than its factorization.

1153661932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288415487 (or 288415485 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 1153661932 is about 33965.5992439409. The cubic root of 1153661932 is about 1048.8004235609.

The spelling of 1153661932 in words is "one billion, one hundred fifty-three million, six hundred sixty-one thousand, nine hundred thirty-two".