189055190 has 16 divisors (see below), whose sum is σ = 340526160. Its totient is φ = 75571680.

The previous prime is 189055169. The next prime is 189055199. The reversal of 189055190 is 91550981.

It is a super-2 number, since 2×189055190² = 71483729731872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189055199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11981 + ... + 22839.

It is an arithmetic number, because the mean of its divisors is an integer number (21282885).

Almost surely, 2^189055190 is an apocalyptic number.

189055190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189055190 is a deficient number, since it is larger than the sum of its proper divisors (151470970).

189055190 is a wasteful number, since it uses less digits than its factorization.

189055190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12607.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 189055190 is about 13749.7341792487. The cubic root of 189055190 is about 573.9352090102.

The spelling of 189055190 in words is "one hundred eighty-nine million, fifty-five thousand, one hundred ninety".