19916119 has 8 divisors (see below), whose sum is σ = 20512800. Its totient is φ = 19324800.

The previous prime is 19916087. The next prime is 19916173. The reversal of 19916119 is 91161991.

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 19916119 - 2⁵ = 19916087 is a prime.

It is a super-2 number, since 2×19916119² = 793303592044322, 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 (19916179) 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, 6939 + ... + 9379.

It is an arithmetic number, because the mean of its divisors is an integer number (2564100).

Almost surely, 2^19916119 is an apocalyptic number.

19916119 is a deficient number, since it is larger than the sum of its proper divisors (596681).

19916119 is a wasteful number, since it uses less digits than its factorization.

19916119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681.

The product of its digits is 4374, while the sum is 37.

The square root of 19916119 is about 4462.7479202841. The cubic root of 19916119 is about 271.0617497936.

It can be divided in two parts, 199 and 16119, that multiplied together give a square (3207681 = 1791²).

The spelling of 19916119 in words is "nineteen million, nine hundred sixteen thousand, one hundred nineteen".