22542371 has 2 divisors, whose sum is σ = 22542372. Its totient is φ = 22542370.

The previous prime is 22542353. The next prime is 22542383. The reversal of 22542371 is 17324522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22542371 - 2¹⁰ = 22541347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22542371.

It is not a weakly prime, because it can be changed into another prime (22542671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271185 + 11271186.

It is an arithmetic number, because the mean of its divisors is an integer number (11271186).

Almost surely, 2^22542371 is an apocalyptic number.

22542371 is a deficient number, since it is larger than the sum of its proper divisors (1).

22542371 is an equidigital number, since it uses as much as digits as its factorization.

22542371 is an evil number, because the sum of its binary digits is even.

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

The square root of 22542371 is about 4747.8806851057. The cubic root of 22542371 is about 282.4879092640.

Adding to 22542371 its reverse (17324522), we get a palindrome (39866893).

The spelling of 22542371 in words is "twenty-two million, five hundred forty-two thousand, three hundred seventy-one".