1125345912 has 16 divisors (see below), whose sum is σ = 2813364840. Its totient is φ = 375115296.

The previous prime is 1125345887. The next prime is 1125345931. The reversal of 1125345912 is 2195435211.

It is a happy number.

It is a super-2 number, since 2×1125345912² = 2532806843310223488, which contains 22 as substring.

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, 23444683 + ... + 23444730.

Almost surely, 2^1125345912 is an apocalyptic number.

1125345912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1125345912 is an abundant number, since it is smaller than the sum of its proper divisors (1688018928).

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

1125345912 is a wasteful number, since it uses less digits than its factorization.

1125345912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46889422 (or 46889418 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 1125345912 is about 33546.1758178186. The cubic root of 1125345912 is about 1040.1484970403.

The spelling of 1125345912 in words is "one billion, one hundred twenty-five million, three hundred forty-five thousand, nine hundred twelve".