190976549 has 2 divisors, whose sum is σ = 190976550. Its totient is φ = 190976548.

The previous prime is 190976503. The next prime is 190976579. The reversal of 190976549 is 945679091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169650625 + 21325924 = 13025^2 + 4618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190976549 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 190976497 and 190976506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190976579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95488274 + 95488275.

It is an arithmetic number, because the mean of its divisors is an integer number (95488275).

Almost surely, 2^190976549 is an apocalyptic number.

It is an amenable number.

190976549 is a deficient number, since it is larger than the sum of its proper divisors (1).

190976549 is an equidigital number, since it uses as much as digits as its factorization.

190976549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 190976549 is about 13819.4265076377. The cubic root of 190976549 is about 575.8729515395.

The spelling of 190976549 in words is "one hundred ninety million, nine hundred seventy-six thousand, five hundred forty-nine".