190404223 has 2 divisors, whose sum is σ = 190404224. Its totient is φ = 190404222.

The previous prime is 190404167. The next prime is 190404229. The reversal of 190404223 is 322404091.

It is a strong prime.

It is an emirp because it is prime and its reverse (322404091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190404223 - 2⁹ = 190403711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190404229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95202111 + 95202112.

It is an arithmetic number, because the mean of its divisors is an integer number (95202112).

Almost surely, 2^190404223 is an apocalyptic number.

190404223 is a deficient number, since it is larger than the sum of its proper divisors (1).

190404223 is an equidigital number, since it uses as much as digits as its factorization.

190404223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 190404223 is about 13798.7036709975. The cubic root of 190404223 is about 575.2971097173.

The spelling of 190404223 in words is "one hundred ninety million, four hundred four thousand, two hundred twenty-three".