1153142540 has 24 divisors (see below), whose sum is σ = 2641745232. Its totient is φ = 419324480.

The previous prime is 1153142527. The next prime is 1153142569. The reversal of 1153142540 is 452413511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2620559 + ... + 2620998.

It is an arithmetic number, because the mean of its divisors is an integer number (110072718).

Almost surely, 2^1153142540 is an apocalyptic number.

1153142540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153142540 is an abundant number, since it is smaller than the sum of its proper divisors (1488602692).

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

1153142540 is a wasteful number, since it uses less digits than its factorization.

1153142540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5241577 (or 5241575 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1153142540 is about 33957.9525295622. The cubic root of 1153142540 is about 1048.6430058911.

The spelling of 1153142540 in words is "one billion, one hundred fifty-three million, one hundred forty-two thousand, five hundred forty".