1125827181 has 20 divisors (see below), whose sum is σ = 1683239712. Its totient is φ = 749905128.

The previous prime is 1125827179. The next prime is 1125827233. The reversal of 1125827181 is 1817285211.

1125827181 is a `hidden beast` number, since 1 + 1 + 2 + 582 + 71 + 8 + 1 = 666.

It is not a de Polignac number, because 1125827181 - 2¹ = 1125827179 is a prime.

It is a super-2 number, since 2×1125827181² = 2534973682956813522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125827081) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100210 + ... + 110876.

Almost surely, 2^1125827181 is an apocalyptic number.

It is an amenable number.

1125827181 is a deficient number, since it is larger than the sum of its proper divisors (557412531).

1125827181 is a wasteful number, since it uses less digits than its factorization.

1125827181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982 (or 11973 counting only the distinct ones).

The product of its digits is 8960, while the sum is 36.

The square root of 1125827181 is about 33553.3482829955. The cubic root of 1125827181 is about 1040.2967536422.

The spelling of 1125827181 in words is "one billion, one hundred twenty-five million, eight hundred twenty-seven thousand, one hundred eighty-one".