20158119 has 8 divisors (see below), whose sum is σ = 29863920. Its totient is φ = 13438728.

The previous prime is 20158109. The next prime is 20158163. The reversal of 20158119 is 91185102.

It is a de Polignac number, because none of the positive numbers 2^k-20158119 is a prime.

It is a super-2 number, since 2×20158119² = 812699523236322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 746597 = 20158119 / (2 + 0 + 1 + 5 + 8 + 1 + 1 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 20158092 and 20158101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20158109) 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, 373272 + ... + 373325.

It is an arithmetic number, because the mean of its divisors is an integer number (3732990).

Almost surely, 2^20158119 is an apocalyptic number.

20158119 is a deficient number, since it is larger than the sum of its proper divisors (9705801).

20158119 is an equidigital number, since it uses as much as digits as its factorization.

20158119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746606 (or 746600 counting only the distinct ones).

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

The square root of 20158119 is about 4489.7793932442. The cubic root of 20158119 is about 272.1552197603.

The spelling of 20158119 in words is "twenty million, one hundred fifty-eight thousand, one hundred nineteen".