2238529 has 2 divisors, whose sum is σ = 2238530. Its totient is φ = 2238528.

The previous prime is 2238527. The next prime is 2238557. The reversal of 2238529 is 9258322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 106929 = 1460^2 + 327^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238529 - 2¹ = 2238527 is a prime.

It is a super-2 number, since 2×2238529² = 10022024167682, which contains 22 as substring.

Together with 2238527, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹² + 2¹⁴ + 3⁷ + 8³ + 5⁹ + 2¹⁸ + 9² .

It is a self number, because there is not a number n which added to its sum of digits gives 2238529.

It is not a weakly prime, because it can be changed into another prime (2238527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119264 + 1119265.

It is an arithmetic number, because the mean of its divisors is an integer number (1119265).

2^2238529 is an apocalyptic number.

It is an amenable number.

2238529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238529 is an equidigital number, since it uses as much as digits as its factorization.

2238529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 2238529 is about 1496.1714473950. The cubic root of 2238529 is about 130.8140048349.

The spelling of 2238529 in words is "two million, two hundred thirty-eight thousand, five hundred twenty-nine".