1249273 has 2 divisors, whose sum is σ = 1249274. Its totient is φ = 1249272.

The previous prime is 1249247. The next prime is 1249301. The reversal of 1249273 is 3729421.

It is an a-pointer prime, because the next prime (1249301) can be obtained adding 1249273 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 21609 = 1108^2 + 147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249273 - 2¹³ = 1241081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1249243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624636 + 624637.

It is an arithmetic number, because the mean of its divisors is an integer number (624637).

2^1249273 is an apocalyptic number.

It is an amenable number.

1249273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249273 is an equidigital number, since it uses as much as digits as its factorization.

1249273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 1249273 is about 1117.7088171791. The cubic root of 1249273 is about 107.7008467980.

The spelling of 1249273 in words is "one million, two hundred forty-nine thousand, two hundred seventy-three".