1244381 has 2 divisors, whose sum is σ = 1244382. Its totient is φ = 1244380.

The previous prime is 1244363. The next prime is 1244393. The reversal of 1244381 is 1834421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1243225 + 1156 = 1115^2 + 34^2 .

It is an emirp because it is prime and its reverse (1834421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244381 is a prime.

It is a super-2 number, since 2×1244381² = 3096968146322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622190 + 622191.

It is an arithmetic number, because the mean of its divisors is an integer number (622191).

2^1244381 is an apocalyptic number.

It is an amenable number.

1244381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244381 is an equidigital number, since it uses as much as digits as its factorization.

1244381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 1244381 is about 1115.5182652023. The cubic root of 1244381 is about 107.5600817917.

The spelling of 1244381 in words is "one million, two hundred forty-four thousand, three hundred eighty-one".