22237651 has 2 divisors, whose sum is σ = 22237652. Its totient is φ = 22237650.

The previous prime is 22237613. The next prime is 22237661. The reversal of 22237651 is 15673222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22237651 - 2¹⁵ = 22204883 is a prime.

It is not a weakly prime, because it can be changed into another prime (22237661) 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 as a sum of consecutive naturals, namely, 11118825 + 11118826.

It is an arithmetic number, because the mean of its divisors is an integer number (11118826).

Almost surely, 2^22237651 is an apocalyptic number.

22237651 is a deficient number, since it is larger than the sum of its proper divisors (1).

22237651 is an equidigital number, since it uses as much as digits as its factorization.

22237651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 22237651 is about 4715.6813929696. The cubic root of 22237651 is about 281.2092723906.

It can be divided in two parts, 222 and 37651, that added together give a palindrome (37873).

The spelling of 22237651 in words is "twenty-two million, two hundred thirty-seven thousand, six hundred fifty-one".