190929091 has 16 divisors (see below), whose sum is σ = 206609184. Its totient is φ = 175785984.

The previous prime is 190929083. The next prime is 190929131.

190929091 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 190929091 - 2³ = 190929083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190929041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169456 + ... + 170578.

It is an arithmetic number, because the mean of its divisors is an integer number (12913074).

Almost surely, 2^190929091 is an apocalyptic number.

190929091 is a deficient number, since it is larger than the sum of its proper divisors (15680093).

190929091 is a wasteful number, since it uses less digits than its factorization.

190929091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 190929091 is about 13817.7093253549. The cubic root of 190929091 is about 575.8252457822.

The spelling of 190929091 in words is "one hundred ninety million, nine hundred twenty-nine thousand, ninety-one".