2249609 has 2 divisors, whose sum is σ = 2249610. Its totient is φ = 2249608.

The previous prime is 2249603. The next prime is 2249633. The reversal of 2249609 is 9069422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 73984 = 1475^2 + 272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2249609 is a prime.

It is not a weakly prime, because it can be changed into another prime (2249603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124804 + 1124805.

It is an arithmetic number, because the mean of its divisors is an integer number (1124805).

2^2249609 is an apocalyptic number.

It is an amenable number.

2249609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2249609 is an equidigital number, since it uses as much as digits as its factorization.

2249609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2249609 is about 1499.8696610039. The cubic root of 2249609 is about 131.0294788271.

The spelling of 2249609 in words is "two million, two hundred forty-nine thousand, six hundred nine".