22034581 has 2 divisors, whose sum is σ = 22034582. Its totient is φ = 22034580.

The previous prime is 22034569. The next prime is 22034599. The reversal of 22034581 is 18543022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17766225 + 4268356 = 4215^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 22034581 - 2¹⁵ = 22001813 is a prime.

It is a super-2 number, since 2×22034581² = 971045519691122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22034381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11017290 + 11017291.

It is an arithmetic number, because the mean of its divisors is an integer number (11017291).

Almost surely, 2^22034581 is an apocalyptic number.

It is an amenable number.

22034581 is a deficient number, since it is larger than the sum of its proper divisors (1).

22034581 is an equidigital number, since it uses as much as digits as its factorization.

22034581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 22034581 is about 4694.1006593383. The cubic root of 22034581 is about 280.3506703331.

The spelling of 22034581 in words is "twenty-two million, thirty-four thousand, five hundred eighty-one".