190555199 has 4 divisors (see below), whose sum is σ = 200584440. Its totient is φ = 180525960.

The previous prime is 190555181. The next prime is 190555219. The reversal of 190555199 is 991555091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991555091 = 15377 ⋅64483.

It is a cyclic number.

It is not a de Polignac number, because 190555199 - 2⁸ = 190554943 is a prime.

It is a super-2 number, since 2×190555199² = 72622567731859202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190525199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5014592 + ... + 5014629.

It is an arithmetic number, because the mean of its divisors is an integer number (50146110).

Almost surely, 2^190555199 is an apocalyptic number.

190555199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

190555199 is a deficient number, since it is larger than the sum of its proper divisors (10029241).

190555199 is a wasteful number, since it uses less digits than its factorization.

190555199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10029240.

The product of its (nonzero) digits is 91125, while the sum is 44.

The square root of 190555199 is about 13804.1732457978. The cubic root of 190555199 is about 575.4491250953.

The spelling of 190555199 in words is "one hundred ninety million, five hundred fifty-five thousand, one hundred ninety-nine".