2245687 has 2 divisors, whose sum is σ = 2245688. Its totient is φ = 2245686.

The previous prime is 2245681. The next prime is 2245721. The reversal of 2245687 is 7865422.

It is an a-pointer prime, because the next prime (2245721) can be obtained adding 2245687 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2245687 - 2³ = 2245679 is a prime.

It is a super-2 number, since 2×2245687² = 10086220203938, which contains 22 as substring.

2245687 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2245681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122843 + 1122844.

It is an arithmetic number, because the mean of its divisors is an integer number (1122844).

2^2245687 is an apocalyptic number.

2245687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245687 is an equidigital number, since it uses as much as digits as its factorization.

2245687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 2245687 is about 1498.5616437104. The cubic root of 2245687 is about 130.9532883201.

The spelling of 2245687 in words is "two million, two hundred forty-five thousand, six hundred eighty-seven".