22161341 has 4 divisors (see below), whose sum is σ = 22188000. Its totient is φ = 22134684.

The previous prime is 22161331. The next prime is 22161343. The reversal of 22161341 is 14316122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14316122 = 2 ⋅7158061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22161341 is a prime.

It is a super-2 number, since 2×22161341² = 982250069836562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161343) 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, 12041 + ... + 13758.

It is an arithmetic number, because the mean of its divisors is an integer number (5547000).

Almost surely, 2^22161341 is an apocalyptic number.

It is an amenable number.

22161341 is a deficient number, since it is larger than the sum of its proper divisors (26659).

22161341 is an equidigital number, since it uses as much as digits as its factorization.

22161341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26658.

The product of its digits is 288, while the sum is 20.

The square root of 22161341 is about 4707.5833502977. The cubic root of 22161341 is about 280.8872408869.

Adding to 22161341 its reverse (14316122), we get a palindrome (36477463).

The spelling of 22161341 in words is "twenty-two million, one hundred sixty-one thousand, three hundred forty-one".