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BaseRepresentation
bin100110011000…
…0101000010101
31101212022101012
41030300220111
520122402013
61555142005
7333015053
oct114605025
941768335
1020122133
11103a4069
1268a4905
134226bb5
14295b1d3
151b771a8
hex1330a15

20122133 has 2 divisors, whose sum is σ = 20122134. Its totient is φ = 20122132.

The previous prime is 20122093. The next prime is 20122147. The reversal of 20122133 is 33122102.

Adding to 20122133 its reverse (33122102), we get a palindrome (53244235).

It is a happy number.

It is an a-pointer prime, because the next prime (20122147) can be obtained adding 20122133 to its sum of digits (14).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18992164 + 1129969 = 4358^2 + 1063^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122133 - 212 = 20118037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061066 + 10061067.

It is an arithmetic number, because the mean of its divisors is an integer number (10061067).

Almost surely, 220122133 is an apocalyptic number.

It is an amenable number.

20122133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122133 is an equidigital number, since it uses as much as digits as its factorization.

20122133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20122133 is about 4485.7700565232. The cubic root of 20122133 is about 271.9931740285.

The spelling of 20122133 in words is "twenty million, one hundred twenty-two thousand, one hundred thirty-three".