1155140525 has 24 divisors (see below), whose sum is σ = 1785820224. Its totient is φ = 720086400.

The previous prime is 1155140509. The next prime is 1155140537. The reversal of 1155140525 is 5250415511.

It is not a de Polignac number, because 1155140525 - 2⁴ = 1155140509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298112 + ... + 301961.

It is an arithmetic number, because the mean of its divisors is an integer number (74409176).

Almost surely, 2^1155140525 is an apocalyptic number.

It is an amenable number.

1155140525 is a deficient number, since it is larger than the sum of its proper divisors (630679699).

1155140525 is a wasteful number, since it uses less digits than its factorization.

1155140525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600101 (or 600096 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 1155140525 is about 33987.3583115840. The cubic root of 1155140525 is about 1049.2482979587.

The spelling of 1155140525 in words is "one billion, one hundred fifty-five million, one hundred forty thousand, five hundred twenty-five".