190373257 has 2 divisors, whose sum is σ = 190373258. Its totient is φ = 190373256.

The previous prime is 190373233. The next prime is 190373279. The reversal of 190373257 is 752373091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164454976 + 25918281 = 12824^2 + 5091^2 .

It is an emirp because it is prime and its reverse (752373091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190373257 - 2⁷ = 190373129 is a prime.

It is not a weakly prime, because it can be changed into another prime (190373207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95186628 + 95186629.

It is an arithmetic number, because the mean of its divisors is an integer number (95186629).

Almost surely, 2^190373257 is an apocalyptic number.

It is an amenable number.

190373257 is a deficient number, since it is larger than the sum of its proper divisors (1).

190373257 is an equidigital number, since it uses as much as digits as its factorization.

190373257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 190373257 is about 13797.5815634480. The cubic root of 190373257 is about 575.2659206049.

The spelling of 190373257 in words is "one hundred ninety million, three hundred seventy-three thousand, two hundred fifty-seven".