22461361 has 4 divisors (see below), whose sum is σ = 24189172. Its totient is φ = 20733552.

The previous prime is 22461337. The next prime is 22461371. The reversal of 22461361 is 16316422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16316422 = 2 ⋅8158211.

It can be written as a sum of positive squares in 2 ways, for example, as 11696400 + 10764961 = 3420^2 + 3281^2 .

It is a cyclic number.

It is not a de Polignac number, because 22461361 - 2¹¹ = 22459313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22461311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863886 + ... + 863911.

It is an arithmetic number, because the mean of its divisors is an integer number (6047293).

Almost surely, 2^22461361 is an apocalyptic number.

It is an amenable number.

22461361 is a deficient number, since it is larger than the sum of its proper divisors (1727811).

22461361 is a wasteful number, since it uses less digits than its factorization.

22461361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727810.

The product of its digits is 1728, while the sum is 25.

The square root of 22461361 is about 4739.3418319425. The cubic root of 22461361 is about 282.1491129979.

Adding to 22461361 its reverse (16316422), we get a palindrome (38777783).

It can be divided in two parts, 22461 and 361, that added together give a palindrome (22822).

The spelling of 22461361 in words is "twenty-two million, four hundred sixty-one thousand, three hundred sixty-one".