20214153 has 6 divisors (see below), whose sum is σ = 29198234. Its totient is φ = 13476096.

The previous prime is 20214149. The next prime is 20214163. The reversal of 20214153 is 35141202.

It can be written as a sum of positive squares in only one way, i.e., 12446784 + 7767369 = 3528^2 + 2787^2 .

It is not a de Polignac number, because 20214153 - 2² = 20214149 is a prime.

It is a super-2 number, since 2×20214153² = 817223963014818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20214113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123000 + ... + 1123017.

Almost surely, 2^20214153 is an apocalyptic number.

It is an amenable number.

20214153 is a deficient number, since it is larger than the sum of its proper divisors (8984081).

20214153 is a wasteful number, since it uses less digits than its factorization.

20214153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246023 (or 2246020 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20214153 is about 4496.0152357393. The cubic root of 20214153 is about 272.4071585639.

Adding to 20214153 its reverse (35141202), we get a palindrome (55355355).

The spelling of 20214153 in words is "twenty million, two hundred fourteen thousand, one hundred fifty-three".