1249841 has 2 divisors, whose sum is σ = 1249842. Its totient is φ = 1249840.

The previous prime is 1249837. The next prime is 1249847. The reversal of 1249841 is 1489421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 633616 + 616225 = 796^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249841 - 2² = 1249837 is a prime.

It is not a weakly prime, because it can be changed into another prime (1249847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624920 + 624921.

It is an arithmetic number, because the mean of its divisors is an integer number (624921).

2^1249841 is an apocalyptic number.

It is an amenable number.

1249841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249841 is an equidigital number, since it uses as much as digits as its factorization.

1249841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 1249841 is about 1117.9628795269. The cubic root of 1249841 is about 107.7171669064.

The spelling of 1249841 in words is "one million, two hundred forty-nine thousand, eight hundred forty-one".