190464091 has 2 divisors, whose sum is σ = 190464092. Its totient is φ = 190464090.

The previous prime is 190464089. The next prime is 190464097.

190464091 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 190464091 - 2¹ = 190464089 is a prime.

Together with 190464089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (190464097) 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 as a sum of consecutive naturals, namely, 95232045 + 95232046.

It is an arithmetic number, because the mean of its divisors is an integer number (95232046).

Almost surely, 2^190464091 is an apocalyptic number.

190464091 is a deficient number, since it is larger than the sum of its proper divisors (1).

190464091 is an equidigital number, since it uses as much as digits as its factorization.

190464091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 190464091 is about 13800.8728347159. The cubic root of 190464091 is about 575.3573994833.

The spelling of 190464091 in words is "one hundred ninety million, four hundred sixty-four thousand, ninety-one".