1153913720 has 16 divisors (see below), whose sum is σ = 2596305960. Its totient is φ = 461565472.

The previous prime is 1153913699. The next prime is 1153913771. The reversal of 1153913720 is 273193511.

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, 14423882 + ... + 14423961.

Almost surely, 2^1153913720 is an apocalyptic number.

1153913720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153913720 is an abundant number, since it is smaller than the sum of its proper divisors (1442392240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153913720 is a wasteful number, since it uses less digits than its factorization.

1153913720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28847854 (or 28847850 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 1153913720 is about 33969.3055566345. The cubic root of 1153913720 is about 1048.8767186304.

The spelling of 1153913720 in words is "one billion, one hundred fifty-three million, nine hundred thirteen thousand, seven hundred twenty".