22147124 has 12 divisors (see below), whose sum is σ = 41037444. Its totient is φ = 10422144.

The previous prime is 22147121. The next prime is 22147129. The reversal of 22147124 is 42174122.

It can be written as a sum of positive squares in 2 ways, for example, as 12475024 + 9672100 = 3532^2 + 3110^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22147124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22147121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162779 + ... + 162914.

It is an arithmetic number, because the mean of its divisors is an integer number (3419787).

Almost surely, 2^22147124 is an apocalyptic number.

It is an amenable number.

22147124 is a deficient number, since it is larger than the sum of its proper divisors (18890320).

22147124 is a wasteful number, since it uses less digits than its factorization.

22147124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325714 (or 325712 counting only the distinct ones).

The product of its digits is 896, while the sum is 23.

The square root of 22147124 is about 4706.0730976048. The cubic root of 22147124 is about 280.8271628715.

It can be divided in two parts, 2214 and 7124, that multiplied together give a triangular number (15772536 = T₅₆₁₆).

The spelling of 22147124 in words is "twenty-two million, one hundred forty-seven thousand, one hundred twenty-four".