190055519 has 4 divisors (see below), whose sum is σ = 191193744. Its totient is φ = 188917296.

The previous prime is 190055479. The next prime is 190055539. The reversal of 190055519 is 915550091.

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: 915550091 = 1613 ⋅567607.

It is a cyclic number.

It is not a de Polignac number, because 190055519 - 2¹⁶ = 189989983 is a prime.

It is a super-2 number, since 2×190055519² = 72242200604718722, 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 (190055539) by changing a digit.

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, 568862 + ... + 569195.

It is an arithmetic number, because the mean of its divisors is an integer number (47798436).

Almost surely, 2^190055519 is an apocalyptic number.

190055519 is a deficient number, since it is larger than the sum of its proper divisors (1138225).

190055519 is a wasteful number, since it uses less digits than its factorization.

190055519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138224.

The product of its (nonzero) digits is 10125, while the sum is 35.

The square root of 190055519 is about 13786.0624907912. The cubic root of 190055519 is about 574.9456977075.

The spelling of 190055519 in words is "one hundred ninety million, fifty-five thousand, five hundred nineteen".