190550761 has 2 divisors, whose sum is σ = 190550762. Its totient is φ = 190550760.

The previous prime is 190550719. The next prime is 190550771. The reversal of 190550761 is 167055091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145660761 + 44890000 = 12069^2 + 6700^2 .

It is a cyclic number.

It is not a de Polignac number, because 190550761 - 2⁹ = 190550249 is a prime.

It is not a weakly prime, because it can be changed into another prime (190550771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95275380 + 95275381.

It is an arithmetic number, because the mean of its divisors is an integer number (95275381).

Almost surely, 2^190550761 is an apocalyptic number.

It is an amenable number.

190550761 is a deficient number, since it is larger than the sum of its proper divisors (1).

190550761 is an equidigital number, since it uses as much as digits as its factorization.

190550761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 190550761 is about 13804.0124963722. The cubic root of 190550761 is about 575.4446576880. Note that the first 3 decimals are identical.

The spelling of 190550761 in words is "one hundred ninety million, five hundred fifty thousand, seven hundred sixty-one".