190695653 has 2 divisors, whose sum is σ = 190695654. Its totient is φ = 190695652.

The previous prime is 190695623. The next prime is 190695667. The reversal of 190695653 is 356596091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121506529 + 69189124 = 11023^2 + 8318^2 .

It is an emirp because it is prime and its reverse (356596091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190695653 - 2⁸ = 190695397 is a 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 (190695623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95347826 + 95347827.

It is an arithmetic number, because the mean of its divisors is an integer number (95347827).

Almost surely, 2^190695653 is an apocalyptic number.

It is an amenable number.

190695653 is a deficient number, since it is larger than the sum of its proper divisors (1).

190695653 is an equidigital number, since it uses as much as digits as its factorization.

190695653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 190695653 is about 13809.2596832705. The cubic root of 190695653 is about 575.5904739574.

The spelling of 190695653 in words is "one hundred ninety million, six hundred ninety-five thousand, six hundred fifty-three".