22154241 has 4 divisors (see below), whose sum is σ = 29538992. Its totient is φ = 14769492.

The previous prime is 22154233. The next prime is 22154263. The reversal of 22154241 is 14245122.

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.

It is not a de Polignac number, because 22154241 - 2³ = 22154233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22154291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3692371 + ... + 3692376.

It is an arithmetic number, because the mean of its divisors is an integer number (7384748).

Almost surely, 2^22154241 is an apocalyptic number.

It is an amenable number.

22154241 is a deficient number, since it is larger than the sum of its proper divisors (7384751).

22154241 is an equidigital number, since it uses as much as digits as its factorization.

22154241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384750.

The product of its digits is 640, while the sum is 21.

The square root of 22154241 is about 4706.8291874679. The cubic root of 22154241 is about 280.8572410112.

Adding to 22154241 its reverse (14245122), we get a palindrome (36399363).

The spelling of 22154241 in words is "twenty-two million, one hundred fifty-four thousand, two hundred forty-one".