22154117 has 4 divisors (see below), whose sum is σ = 22200096. Its totient is φ = 22108140.

The previous prime is 22154081. The next prime is 22154131. The reversal of 22154117 is 71145122.

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 a cyclic number.

It is not a de Polignac number, because 22154117 - 2¹⁰ = 22153093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22154092 and 22154101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154137) 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, 22259 + ... + 23232.

It is an arithmetic number, because the mean of its divisors is an integer number (5550024).

Almost surely, 2^22154117 is an apocalyptic number.

It is an amenable number.

22154117 is a deficient number, since it is larger than the sum of its proper divisors (45979).

22154117 is an equidigital number, since it uses as much as digits as its factorization.

22154117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45978.

The product of its digits is 560, while the sum is 23.

The square root of 22154117 is about 4706.8160150998. The cubic root of 22154117 is about 280.8567170128.

Adding to 22154117 its reverse (71145122), we get a palindrome (93299239).

The spelling of 22154117 in words is "twenty-two million, one hundred fifty-four thousand, one hundred seventeen".