20132186 has 4 divisors (see below), whose sum is σ = 30198282. Its totient is φ = 10066092.

The previous prime is 20132179. The next prime is 20132201. The reversal of 20132186 is 68123102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15642025 + 4490161 = 3955^2 + 2119^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033045 + ... + 5033048.

Almost surely, 2^20132186 is an apocalyptic number.

20132186 is a deficient number, since it is larger than the sum of its proper divisors (10066096).

20132186 is a wasteful number, since it uses less digits than its factorization.

20132186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066095.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20132186 is about 4486.8904599957. The cubic root of 20132186 is about 272.0384623378.

Adding to 20132186 its reverse (68123102), we get a palindrome (88255288).

The spelling of 20132186 in words is "twenty million, one hundred thirty-two thousand, one hundred eighty-six".