189280113 has 32 divisors (see below), whose sum is σ = 280350720. Its totient is φ = 112640640.

The previous prime is 189280099. The next prime is 189280121. The reversal of 189280113 is 311082981.

189280113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189280113 - 2⁴ = 189280097 is a prime.

It is a super-2 number, since 2×189280113² = 71653922354585538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189280153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791848 + ... + 792086.

It is an arithmetic number, because the mean of its divisors is an integer number (8760960).

Almost surely, 2^189280113 is an apocalyptic number.

It is an amenable number.

189280113 is a deficient number, since it is larger than the sum of its proper divisors (91070607).

189280113 is a wasteful number, since it uses less digits than its factorization.

189280113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 189280113 is about 13757.9109242646. The cubic root of 189280113 is about 574.1627264680.

The spelling of 189280113 in words is "one hundred eighty-nine million, two hundred eighty thousand, one hundred thirteen".