190495169 has 4 divisors (see below), whose sum is σ = 190523844. Its totient is φ = 190466496.

The previous prime is 190495163. The next prime is 190495181. The reversal of 190495169 is 961594091.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 961594091 = 15607 ⋅61613.

It can be written as a sum of positive squares in 2 ways, for example, as 112614544 + 77880625 = 10612^2 + 8825^2 .

It is a cyclic number.

It is not a de Polignac number, because 190495169 - 2¹² = 190491073 is a prime.

It is a super-2 number, since 2×190495169² = 72576818824677122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190495163) 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, 1349 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (47630961).

Almost surely, 2^190495169 is an apocalyptic number.

It is an amenable number.

190495169 is a deficient number, since it is larger than the sum of its proper divisors (28675).

190495169 is a wasteful number, since it uses less digits than its factorization.

190495169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28674.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 190495169 is about 13801.9987320678. The cubic root of 190495169 is about 575.3886914445.

The spelling of 190495169 in words is "one hundred ninety million, four hundred ninety-five thousand, one hundred sixty-nine".