1125555235 has 24 divisors (see below), whose sum is σ = 1578702096. Its totient is φ = 768116160.

The previous prime is 1125555217. The next prime is 1125555283. The reversal of 1125555235 is 5325555211.

It is not a de Polignac number, because 1125555235 - 2⁹ = 1125554723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125555235.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40809 + ... + 62581.

It is an arithmetic number, because the mean of its divisors is an integer number (65779254).

Almost surely, 2^1125555235 is an apocalyptic number.

1125555235 is a deficient number, since it is larger than the sum of its proper divisors (453146861).

1125555235 is a wasteful number, since it uses less digits than its factorization.

1125555235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22003 (or 21996 counting only the distinct ones).

The product of its digits is 37500, while the sum is 34.

The square root of 1125555235 is about 33549.2955961820. The cubic root of 1125555235 is about 1040.2129849171.

The spelling of 1125555235 in words is "one billion, one hundred twenty-five million, five hundred fifty-five thousand, two hundred thirty-five".