190271081 has 32 divisors (see below), whose sum is σ = 257596416. Its totient is φ = 135720000.

The previous prime is 190270999. The next prime is 190271083. The reversal of 190271081 is 180172091.

It is not a de Polignac number, because 190271081 - 2¹⁴ = 190254697 is a prime.

It is a super-2 number, since 2×190271081² = 72406168529817122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (190271083) 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, 130406 + ... + 131856.

It is an arithmetic number, because the mean of its divisors is an integer number (8049888).

Almost surely, 2^190271081 is an apocalyptic number.

190271081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

190271081 is a deficient number, since it is larger than the sum of its proper divisors (67325335).

190271081 is a wasteful number, since it uses less digits than its factorization.

190271081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 190271081 is about 13793.8783886186. The cubic root of 190271081 is about 575.1629844213.

The spelling of 190271081 in words is "one hundred ninety million, two hundred seventy-one thousand, eighty-one".