190122808 has 16 divisors (see below), whose sum is σ = 358875000. Its totient is φ = 94422816.

The previous prime is 190122767. The next prime is 190122833. The reversal of 190122808 is 808221091.

It is a happy number.

It is a super-2 number, since 2×190122808² = 72293364243609728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190122808.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 78558 + ... + 80941.

Almost surely, 2^190122808 is an apocalyptic number.

It is an amenable number.

190122808 is a deficient number, since it is larger than the sum of its proper divisors (168752192).

190122808 is a wasteful number, since it uses less digits than its factorization.

190122808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159654 (or 159650 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 190122808 is about 13788.5027468540. The cubic root of 190122808 is about 575.0135427182.

Adding to 190122808 its reverse (808221091), we get a palindrome (998343899).

The spelling of 190122808 in words is "one hundred ninety million, one hundred twenty-two thousand, eight hundred eight".