20185119 has 10 divisors (see below), whose sum is σ = 30153200. Its totient is φ = 13456692.

The previous prime is 20185117. The next prime is 20185129. The reversal of 20185119 is 91158102.

It is not a de Polignac number, because 20185119 - 2¹ = 20185117 is a prime.

It is a super-2 number, since 2×20185119² = 814878058088322, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20185092 and 20185101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20185117) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 124519 + ... + 124680.

It is an arithmetic number, because the mean of its divisors is an integer number (3015320).

Almost surely, 2^20185119 is an apocalyptic number.

20185119 is a deficient number, since it is larger than the sum of its proper divisors (9968081).

20185119 is an equidigital number, since it uses as much as digits as its factorization.

20185119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249211 (or 249202 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 20185119 is about 4492.7852163218. The cubic root of 20185119 is about 272.2766747536.

The spelling of 20185119 in words is "twenty million, one hundred eighty-five thousand, one hundred nineteen".