190221156 has 24 divisors (see below), whose sum is σ = 493166240. Its totient is φ = 63407016.

The previous prime is 190221151. The next prime is 190221169. The reversal of 190221156 is 651122091.

190221156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (190221151) 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, 880546 + ... + 880761.

Almost surely, 2^190221156 is an apocalyptic number.

It is an amenable number.

190221156 is an abundant number, since it is smaller than the sum of its proper divisors (302945084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190221156 is a wasteful number, since it uses less digits than its factorization.

190221156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761320 (or 1761312 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 190221156 is about 13792.0685903167. The cubic root of 190221156 is about 575.1126745797.

The spelling of 190221156 in words is "one hundred ninety million, two hundred twenty-one thousand, one hundred fifty-six".