22750117 has 4 divisors (see below), whose sum is σ = 24500140. Its totient is φ = 21000096.

The previous prime is 22750109. The next prime is 22750127. The reversal of 22750117 is 71105722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71105722 = 2 ⋅35552861.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 13905441 = 2974^2 + 3729^2 .

It is not a de Polignac number, because 22750117 - 2³ = 22750109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22750091 and 22750100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22750127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874992 + ... + 875017.

It is an arithmetic number, because the mean of its divisors is an integer number (6125035).

Almost surely, 2^22750117 is an apocalyptic number.

It is an amenable number.

22750117 is a deficient number, since it is larger than the sum of its proper divisors (1750023).

22750117 is a wasteful number, since it uses less digits than its factorization.

22750117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750022.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 22750117 is about 4769.7082720015. The cubic root of 22750117 is about 283.3530411513.

Adding to 22750117 its reverse (71105722), we get a palindrome (93855839).

The spelling of 22750117 in words is "twenty-two million, seven hundred fifty thousand, one hundred seventeen".