1919113 has 8 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 1548096.

The previous prime is 1919063. The next prime is 1919119. The reversal of 1919113 is 3119191.

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

It is a cyclic number.

It is not a de Polignac number, because 1919113 - 2¹⁷ = 1788041 is a prime.

It is an Ulam number.

1919113 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1919119) 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, 7945 + ... + 8182.

It is an arithmetic number, because the mean of its divisors is an integer number (290304).

2^1919113 is an apocalyptic number.

It is an amenable number.

1919113 is a deficient number, since it is larger than the sum of its proper divisors (403319).

1919113 is a wasteful number, since it uses less digits than its factorization.

1919113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16151.

The product of its digits is 243, while the sum is 25.

The square root of 1919113 is about 1385.3205405248. The cubic root of 1919113 is about 124.2701576009.

The spelling of 1919113 in words is "one million, nine hundred nineteen thousand, one hundred thirteen".