190994263 has 2 divisors, whose sum is σ = 190994264. Its totient is φ = 190994262.

The previous prime is 190994197. The next prime is 190994291. The reversal of 190994263 is 362499091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190994263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190994663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95497131 + 95497132.

It is an arithmetic number, because the mean of its divisors is an integer number (95497132).

Almost surely, 2^190994263 is an apocalyptic number.

190994263 is a deficient number, since it is larger than the sum of its proper divisors (1).

190994263 is an equidigital number, since it uses as much as digits as its factorization.

190994263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 190994263 is about 13820.0674021511. The cubic root of 190994263 is about 575.8907559909.

The spelling of 190994263 in words is "one hundred ninety million, nine hundred ninety-four thousand, two hundred sixty-three".