1249247 has 2 divisors, whose sum is σ = 1249248. Its totient is φ = 1249246.

The previous prime is 1249243. The next prime is 1249273. The reversal of 1249247 is 7429421.

It is a weak prime.

It is an emirp because it is prime and its reverse (7429421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1249247 - 2² = 1249243 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624623 + 624624.

It is an arithmetic number, because the mean of its divisors is an integer number (624624).

2^1249247 is an apocalyptic number.

1249247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249247 is an equidigital number, since it uses as much as digits as its factorization.

1249247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 1249247 is about 1117.6971861824. The cubic root of 1249247 is about 107.7000996324.

The spelling of 1249247 in words is "one million, two hundred forty-nine thousand, two hundred forty-seven".