190001019 has 8 divisors (see below), whose sum is σ = 272822032. Its totient is φ = 116923680.

The previous prime is 190000991. The next prime is 190001023. The reversal of 190001019 is 910100091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190001019 - 2⁹ = 190000507 is a prime.

It is a super-2 number, since 2×190001019² = 72200774442076722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190000986 and 190001004.

It is not an unprimeable number, because it can be changed into a prime (190001029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2435872 + ... + 2435949.

It is an arithmetic number, because the mean of its divisors is an integer number (34102754).

Almost surely, 2^190001019 is an apocalyptic number.

190001019 is a deficient number, since it is larger than the sum of its proper divisors (82821013).

190001019 is a wasteful number, since it uses less digits than its factorization.

190001019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871837.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 190001019 is about 13784.0857150556. The cubic root of 190001019 is about 574.8907356341.

The spelling of 190001019 in words is "one hundred ninety million, one thousand, nineteen".