22386145 has 16 divisors (see below), whose sum is σ = 27469008. Its totient is φ = 17510400.

The previous prime is 22386139. The next prime is 22386157. The reversal of 22386145 is 54168322.

It can be written as a sum of positive squares in 8 ways, for example, as 3411409 + 18974736 = 1847^2 + 4356^2 .

It is not a de Polignac number, because 22386145 - 2³ = 22386137 is a prime.

It is a super-2 number, since 2×22386145² = 1002278975922050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48757 + ... + 49213.

It is an arithmetic number, because the mean of its divisors is an integer number (1716813).

Almost surely, 2^22386145 is an apocalyptic number.

It is an amenable number.

22386145 is a deficient number, since it is larger than the sum of its proper divisors (5082863).

22386145 is a wasteful number, since it uses less digits than its factorization.

22386145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its digits is 11520, while the sum is 31.

The square root of 22386145 is about 4731.3998985501. The cubic root of 22386145 is about 281.8338180553.

It can be divided in two parts, 223 and 86145, that added together give a palindrome (86368).

The spelling of 22386145 in words is "twenty-two million, three hundred eighty-six thousand, one hundred forty-five".