22152437 has 2 divisors, whose sum is σ = 22152438. Its totient is φ = 22152436.

The previous prime is 22152421. The next prime is 22152467. The reversal of 22152437 is 73425122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 8059921 = 3754^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 22152437 - 2⁴ = 22152421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22152467) 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, 11076218 + 11076219.

It is an arithmetic number, because the mean of its divisors is an integer number (11076219).

Almost surely, 2^22152437 is an apocalyptic number.

It is an amenable number.

22152437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22152437 is an equidigital number, since it uses as much as digits as its factorization.

22152437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 22152437 is about 4706.6375471243. The cubic root of 22152437 is about 280.8496174864.

Adding to 22152437 its reverse (73425122), we get a palindrome (95577559).

The spelling of 22152437 in words is "twenty-two million, one hundred fifty-two thousand, four hundred thirty-seven".