190983911 has 2 divisors, whose sum is σ = 190983912. Its totient is φ = 190983910.

The previous prime is 190983887. The next prime is 190983931. The reversal of 190983911 is 119389091.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190983911 - 2⁶ = 190983847 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190983931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95491955 + 95491956.

It is an arithmetic number, because the mean of its divisors is an integer number (95491956).

Almost surely, 2^190983911 is an apocalyptic number.

190983911 is a deficient number, since it is larger than the sum of its proper divisors (1).

190983911 is an equidigital number, since it uses as much as digits as its factorization.

190983911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 41.

The square root of 190983911 is about 13819.6928692356. The cubic root of 190983911 is about 575.8803512651.

The spelling of 190983911 in words is "one hundred ninety million, nine hundred eighty-three thousand, nine hundred eleven".