190810253 has 2 divisors, whose sum is σ = 190810254. Its totient is φ = 190810252.

The previous prime is 190810223. The next prime is 190810259. The reversal of 190810253 is 352018091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142396489 + 48413764 = 11933^2 + 6958^2 .

It is a cyclic number.

It is not a de Polignac number, because 190810253 - 2¹² = 190806157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190810259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95405126 + 95405127.

It is an arithmetic number, because the mean of its divisors is an integer number (95405127).

Almost surely, 2^190810253 is an apocalyptic number.

It is an amenable number.

190810253 is a deficient number, since it is larger than the sum of its proper divisors (1).

190810253 is an equidigital number, since it uses as much as digits as its factorization.

190810253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 190810253 is about 13813.4084497636. The cubic root of 190810253 is about 575.7057526892.

The spelling of 190810253 in words is "one hundred ninety million, eight hundred ten thousand, two hundred fifty-three".