190490757173 has 4 divisors (see below), whose sum is σ = 190570898700. Its totient is φ = 190410615648.

The previous prime is 190490757161. The next prime is 190490757199. The reversal of 190490757173 is 371757094091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103219553284 + 87271203889 = 321278^2 + 295417^2 .

It is a cyclic number.

It is not a de Polignac number, because 190490757173 - 2⁴ = 190490757157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190490751173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40067198 + ... + 40071951.

It is an arithmetic number, because the mean of its divisors is an integer number (47642724675).

Almost surely, 2^190490757173 is an apocalyptic number.

It is an amenable number.

190490757173 is a deficient number, since it is larger than the sum of its proper divisors (80141527).

190490757173 is an equidigital number, since it uses as much as digits as its factorization.

190490757173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80141526.

The product of its (nonzero) digits is 1666980, while the sum is 53.

The spelling of 190490757173 in words is "one hundred ninety billion, four hundred ninety million, seven hundred fifty-seven thousand, one hundred seventy-three".