2249969 has 2 divisors, whose sum is σ = 2249970. Its totient is φ = 2249968.

The previous prime is 2249963. The next prime is 2249981. The reversal of 2249969 is 9699422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1787569 + 462400 = 1337^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2249969 - 2⁴ = 2249953 is a prime.

It is a super-2 number, since 2×2249969² = 10124721001922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2249963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124984 + 1124985.

It is an arithmetic number, because the mean of its divisors is an integer number (1124985).

2^2249969 is an apocalyptic number.

It is an amenable number.

2249969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2249969 is an equidigital number, since it uses as much as digits as its factorization.

2249969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 2249969 is about 1499.9896666311. The cubic root of 2249969 is about 131.0364679078.

The spelling of 2249969 in words is "two million, two hundred forty-nine thousand, nine hundred sixty-nine".