2238569 has 2 divisors, whose sum is σ = 2238570. Its totient is φ = 2238568.

The previous prime is 2238557. The next prime is 2238571. The reversal of 2238569 is 9658322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 150544 = 1445^2 + 388^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238569 - 2¹⁶ = 2173033 is a prime.

It is a super-2 number, since 2×2238569² = 10022382335522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2238571, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹³ + 3⁵ + 8⁷ + 5⁷ + 6⁶ + 9 .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2238529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119284 + 1119285.

It is an arithmetic number, because the mean of its divisors is an integer number (1119285).

2^2238569 is an apocalyptic number.

It is an amenable number.

2238569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238569 is an equidigital number, since it uses as much as digits as its factorization.

2238569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 2238569 is about 1496.1848147873. The cubic root of 2238569 is about 130.8147839967.

The spelling of 2238569 in words is "two million, two hundred thirty-eight thousand, five hundred sixty-nine".