22645117 has 8 divisors (see below), whose sum is σ = 25229952. Its totient is φ = 20148000.

The previous prime is 22645099. The next prime is 22645121. The reversal of 22645117 is 71154622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22645117 - 2²³ = 14256509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22645127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21384 + ... + 22417.

It is an arithmetic number, because the mean of its divisors is an integer number (3153744).

Almost surely, 2^22645117 is an apocalyptic number.

It is an amenable number.

22645117 is a deficient number, since it is larger than the sum of its proper divisors (2584835).

22645117 is a wasteful number, since it uses less digits than its factorization.

22645117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43859.

The product of its digits is 3360, while the sum is 28.

The square root of 22645117 is about 4758.6885798505. The cubic root of 22645117 is about 282.9164432614.

Adding to 22645117 its reverse (71154622), we get a palindrome (93799739).

It can be divided in two parts, 2264 and 5117, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 22645117 in words is "twenty-two million, six hundred forty-five thousand, one hundred seventeen".