20193219 has 20 divisors (see below), whose sum is σ = 31755240. Its totient is φ = 12752640.

The previous prime is 20193211. The next prime is 20193247. The reversal of 20193219 is 91239102.

It is not a de Polignac number, because 20193219 - 2³ = 20193211 is a prime.

It is a super-2 number, since 2×20193219² = 815532187163922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20193192 and 20193201.

It is not an unprimeable number, because it can be changed into a prime (20193211) 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 19 ways as a sum of consecutive naturals, for example, 5022 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (1587762).

Almost surely, 2^20193219 is an apocalyptic number.

20193219 is a deficient number, since it is larger than the sum of its proper divisors (11562021).

20193219 is a wasteful number, since it uses less digits than its factorization.

20193219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152 (or 13143 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 20193219 is about 4493.6865711796. The cubic root of 20193219 is about 272.3130901301.

The spelling of 20193219 in words is "twenty million, one hundred ninety-three thousand, two hundred nineteen".