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22064531 is a prime number
BaseRepresentation
bin101010000101…
…0110110010011
31112111222211212
41110022312103
521122031111
62104530335
7355355036
oct124126623
945458755
1022064531
1111500455
1274809ab
134757048
142d0501d
151e0c98b

22064531 has 2 divisors, whose sum is σ = 22064532. Its totient is φ = 22064530.

The previous prime is 22064477. The next prime is 22064569. The reversal of 22064531 is 13546022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22064531 - 218 = 21802387 is a prime.

It is a super-2 number, since 2×220645312 = 973687056499922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22064497 and 22064506.

It is not a weakly prime, because it can be changed into another prime (22064131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11032265 + 11032266.

It is an arithmetic number, because the mean of its divisors is an integer number (11032266).

Almost surely, 222064531 is an apocalyptic number.

22064531 is a deficient number, since it is larger than the sum of its proper divisors (1).

22064531 is an equidigital number, since it uses as much as digits as its factorization.

22064531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22064531 is about 4697.2897504838. The cubic root of 22064531 is about 280.4776329046.

The spelling of 22064531 in words is "twenty-two million, sixty-four thousand, five hundred thirty-one".