1125155252 has 48 divisors (see below), whose sum is σ = 2166333120. Its totient is φ = 508157952.

The previous prime is 1125155249. The next prime is 1125155279. The reversal of 1125155252 is 2525515211.

It is a super-2 number, since 2×1125155252² = 2531948682206367008, 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 15 ways as a sum of consecutive naturals, for example, 787763 + ... + 789189.

It is an arithmetic number, because the mean of its divisors is an integer number (45131940).

Almost surely, 2^1125155252 is an apocalyptic number.

It is an amenable number.

1125155252 is a deficient number, since it is larger than the sum of its proper divisors (1041177868).

1125155252 is a wasteful number, since it uses less digits than its factorization.

1125155252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760 (or 1758 counting only the distinct ones).

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

The square root of 1125155252 is about 33543.3339428269. Note that the first 3 decimals coincide. The cubic root of 1125155252 is about 1040.0897518696.

The spelling of 1125155252 in words is "one billion, one hundred twenty-five million, one hundred fifty-five thousand, two hundred fifty-two".