1246249 has 2 divisors, whose sum is σ = 1246250. Its totient is φ = 1246248.

The previous prime is 1246247. The next prime is 1246261. The reversal of 1246249 is 9426421.

1246249 = T₉₁₀ + T₉₁₁ + T₉₁₂.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1140624 + 105625 = 1068^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246249 - 2¹ = 1246247 is a prime.

Together with 1246247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1246241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623124 + 623125.

It is an arithmetic number, because the mean of its divisors is an integer number (623125).

2^1246249 is an apocalyptic number.

1246249 is the 912-nd centered triangular number.

It is an amenable number.

1246249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246249 is an equidigital number, since it uses as much as digits as its factorization.

1246249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 1246249 is about 1116.3552302023. The cubic root of 1246249 is about 107.6138760821.

The spelling of 1246249 in words is "one million, two hundred forty-six thousand, two hundred forty-nine".