22336537 has 2 divisors, whose sum is σ = 22336538. Its totient is φ = 22336536.

The previous prime is 22336511. The next prime is 22336541. The reversal of 22336537 is 73563322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19527561 + 2808976 = 4419^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 22336537 - 2¹¹ = 22334489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22336499 and 22336508.

It is not a weakly prime, because it can be changed into another prime (22336507) 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 as a sum of consecutive naturals, namely, 11168268 + 11168269.

It is an arithmetic number, because the mean of its divisors is an integer number (11168269).

Almost surely, 2^22336537 is an apocalyptic number.

It is an amenable number.

22336537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22336537 is an equidigital number, since it uses as much as digits as its factorization.

22336537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 31.

The square root of 22336537 is about 4726.1545679336. The cubic root of 22336537 is about 281.6254815701.

Adding to 22336537 its reverse (73563322), we get a palindrome (95899859).

The spelling of 22336537 in words is "twenty-two million, three hundred thirty-six thousand, five hundred thirty-seven".