190564144 has 20 divisors (see below), whose sum is σ = 369591424. Its totient is φ = 95185728.

The previous prime is 190564141. The next prime is 190564151. The reversal of 190564144 is 441465091.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (190564141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11914 + ... + 22870.

Almost surely, 2^190564144 is an apocalyptic number.

It is an amenable number.

190564144 is a deficient number, since it is larger than the sum of its proper divisors (179027280).

190564144 is a wasteful number, since it uses less digits than its factorization.

190564144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052 (or 12046 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 190564144 is about 13804.4972382191. The cubic root of 190564144 is about 575.4581291562.

It can be divided in two parts, 1905 and 64144, that added together give a square (66049 = 257²).

The spelling of 190564144 in words is "one hundred ninety million, five hundred sixty-four thousand, one hundred forty-four".