181112051 has 16 divisors (see below), whose sum is σ = 192767040. Its totient is φ = 169804800.

The previous prime is 181112027. The next prime is 181112053. The reversal of 181112051 is 150211181.

It is a cyclic number.

It is not a de Polignac number, because 181112051 - 2¹⁰ = 181111027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181112053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451451 + ... + 451851.

It is an arithmetic number, because the mean of its divisors is an integer number (12047940).

Almost surely, 2^181112051 is an apocalyptic number.

181112051 is a deficient number, since it is larger than the sum of its proper divisors (11654989).

181112051 is a wasteful number, since it uses less digits than its factorization.

181112051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 80, while the sum is 20.

The square root of 181112051 is about 13457.7877453911. The cubic root of 181112051 is about 565.7819866073.

The spelling of 181112051 in words is "one hundred eighty-one million, one hundred twelve thousand, fifty-one".