22069249 has 2 divisors, whose sum is σ = 22069250. Its totient is φ = 22069248.

The previous prime is 22069237. The next prime is 22069283. The reversal of 22069249 is 94296022.

It is a happy number.

It is an a-pointer prime, because the next prime (22069283) can be obtained adding 22069249 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20295025 + 1774224 = 4505^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 22069249 - 2¹⁵ = 22036481 is a prime.

It is not a weakly prime, because it can be changed into another prime (22069219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11034624 + 11034625.

It is an arithmetic number, because the mean of its divisors is an integer number (11034625).

It is a Proth number, since it is equal to 1347 ⋅ 2¹⁴ + 1 and 1347 < 2¹⁴.

Almost surely, 2^22069249 is an apocalyptic number.

It is an amenable number.

22069249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22069249 is an equidigital number, since it uses as much as digits as its factorization.

22069249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 22069249 is about 4697.7919281296. The cubic root of 22069249 is about 280.4976227420.

The spelling of 22069249 in words is "twenty-two million, sixty-nine thousand, two hundred forty-nine".