185349797 has 2 divisors, whose sum is σ = 185349798. Its totient is φ = 185349796.

The previous prime is 185349779. The next prime is 185349803. The reversal of 185349797 is 797943581.

Together with previous prime (185349779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177049636 + 8300161 = 13306^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 185349797 - 2⁶ = 185349733 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 (185349727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92674898 + 92674899.

It is an arithmetic number, because the mean of its divisors is an integer number (92674899).

Almost surely, 2^185349797 is an apocalyptic number.

It is an amenable number.

185349797 is a deficient number, since it is larger than the sum of its proper divisors (1).

185349797 is an equidigital number, since it uses as much as digits as its factorization.

185349797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 185349797 is about 13614.3232295990. The cubic root of 185349797 is about 570.1608215545.

The spelling of 185349797 in words is "one hundred eighty-five million, three hundred forty-nine thousand, seven hundred ninety-seven".