19242119 has 4 divisors (see below), whose sum is σ = 20722296. Its totient is φ = 17761944.

The previous prime is 19242107. The next prime is 19242121. The reversal of 19242119 is 91124291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91124291 = 5297 ⋅17203.

It is a cyclic number.

It is not a de Polignac number, because 19242119 - 2⁸ = 19241863 is a prime.

It is a super-2 number, since 2×19242119² = 740518287220322, 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 = 19242091 and 19242100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19242149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740069 + ... + 740094.

It is an arithmetic number, because the mean of its divisors is an integer number (5180574).

Almost surely, 2^19242119 is an apocalyptic number.

19242119 is a deficient number, since it is larger than the sum of its proper divisors (1480177).

19242119 is a wasteful number, since it uses less digits than its factorization.

19242119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480176.

The product of its digits is 1296, while the sum is 29.

The square root of 19242119 is about 4386.5839784507. The cubic root of 19242119 is about 267.9688415175.

The spelling of 19242119 in words is "nineteen million, two hundred forty-two thousand, one hundred nineteen".