1153120432 has 20 divisors (see below), whose sum is σ = 2255865040. Its totient is φ = 570961728.

The previous prime is 1153120403. The next prime is 1153120439. The reversal of 1153120432 is 2340213511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1153120439) 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, 348207 + ... + 351502.

It is an arithmetic number, because the mean of its divisors is an integer number (112793252).

Almost surely, 2^1153120432 is an apocalyptic number.

It is an amenable number.

1153120432 is a deficient number, since it is larger than the sum of its proper divisors (1102744608).

1153120432 is a wasteful number, since it uses less digits than its factorization.

1153120432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699820 (or 699814 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1153120432 is about 33957.6270077872. The cubic root of 1153120432 is about 1048.6363043352.

Adding to 1153120432 its reverse (2340213511), we get a palindrome (3493333943).

The spelling of 1153120432 in words is "one billion, one hundred fifty-three million, one hundred twenty thousand, four hundred thirty-two".