190494377 has 2 divisors, whose sum is σ = 190494378. Its totient is φ = 190494376.

The previous prime is 190494371. The next prime is 190494397. The reversal of 190494377 is 773494091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182223001 + 8271376 = 13499^2 + 2876^2 .

It is a cyclic number.

It is not a de Polignac number, because 190494377 - 2⁸ = 190494121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190494371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95247188 + 95247189.

It is an arithmetic number, because the mean of its divisors is an integer number (95247189).

Almost surely, 2^190494377 is an apocalyptic number.

It is an amenable number.

190494377 is a deficient number, since it is larger than the sum of its proper divisors (1).

190494377 is an equidigital number, since it uses as much as digits as its factorization.

190494377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 190494377 is about 13801.9700405413. The cubic root of 190494377 is about 575.3878940341.

The spelling of 190494377 in words is "one hundred ninety million, four hundred ninety-four thousand, three hundred seventy-seven".