20086145 has 16 divisors (see below), whose sum is σ = 24625920. Its totient is φ = 15724800.

The previous prime is 20086123. The next prime is 20086159. The reversal of 20086145 is 54168002.

It is not a de Polignac number, because 20086145 - 2⁸ = 20085889 is a prime.

It is a super-2 number, since 2×20086145² = 806906441922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83225 + ... + 83465.

It is an arithmetic number, because the mean of its divisors is an integer number (1539120).

Almost surely, 2^20086145 is an apocalyptic number.

It is an amenable number.

20086145 is a deficient number, since it is larger than the sum of its proper divisors (4539775).

20086145 is a wasteful number, since it uses less digits than its factorization.

20086145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20086145 is about 4481.7569099629. The cubic root of 20086145 is about 271.8309259598.

The spelling of 20086145 in words is "twenty million, eighty-six thousand, one hundred forty-five".