188044081 has 16 divisors (see below), whose sum is σ = 196213248. Its totient is φ = 180086400.

The previous prime is 188044069. The next prime is 188044093. The reversal of 188044081 is 180440881.

It is a happy number.

188044081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (188044069) and next prime (188044093).

It is a cyclic number.

It is not a de Polignac number, because 188044081 - 2²⁵ = 154489649 is a prime.

It is a super-2 number, since 2×188044081² = 70721152798269122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188044061) 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, 843136 + ... + 843358.

It is an arithmetic number, because the mean of its divisors is an integer number (12263328).

Almost surely, 2^188044081 is an apocalyptic number.

It is an amenable number.

188044081 is a deficient number, since it is larger than the sum of its proper divisors (8169167).

188044081 is a wasteful number, since it uses less digits than its factorization.

188044081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 188044081 is about 13712.9165752585. The cubic root of 188044081 is about 572.9102020019.

The spelling of 188044081 in words is "one hundred eighty-eight million, forty-four thousand, eighty-one".