22145104 has 10 divisors (see below), whose sum is σ = 42906170. Its totient is φ = 11072544.

The previous prime is 22145099. The next prime is 22145107. The reversal of 22145104 is 40154122.

It can be written as a sum of positive squares in only one way, i.e., 18905104 + 3240000 = 4348^2 + 1800^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692019 + ... + 692050.

It is an arithmetic number, because the mean of its divisors is an integer number (4290617).

Almost surely, 2^22145104 is an apocalyptic number.

It is an amenable number.

22145104 is a deficient number, since it is larger than the sum of its proper divisors (20761066).

22145104 is a wasteful number, since it uses less digits than its factorization.

22145104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384077 (or 1384071 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 22145104 is about 4705.8584764100. The cubic root of 22145104 is about 280.8186246957.

Adding to 22145104 its reverse (40154122), we get a palindrome (62299226).

The spelling of 22145104 in words is "twenty-two million, one hundred forty-five thousand, one hundred four".