20814152 has 12 divisors (see below), whose sum is σ = 39050745. Its totient is φ = 10400624.

The previous prime is 20814133. The next prime is 20814161. The reversal of 20814152 is 25141802.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 329476 = 4526^2 + 574^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3226.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12098 + ... + 13710.

Almost surely, 2^20814152 is an apocalyptic number.

It is an amenable number.

20814152 is a deficient number, since it is larger than the sum of its proper divisors (18236593).

20814152 is an frugal number, since it uses more digits than its factorization.

20814152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20814152 is about 4562.2529522156. The cubic root of 20814152 is about 275.0761309881.

Adding to 20814152 its reverse (25141802), we get a palindrome (45955954).

The spelling of 20814152 in words is "twenty million, eight hundred fourteen thousand, one hundred fifty-two".