1244041087 has 2 divisors, whose sum is σ = 1244041088. Its totient is φ = 1244041086.

The previous prime is 1244041033. The next prime is 1244041091. The reversal of 1244041087 is 7801404421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244041087 is a prime.

It is a super-2 number, since 2×1244041087² = 3095276452288283138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244041027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622020543 + 622020544.

It is an arithmetic number, because the mean of its divisors is an integer number (622020544).

Almost surely, 2^1244041087 is an apocalyptic number.

1244041087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244041087 is an equidigital number, since it uses as much as digits as its factorization.

1244041087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 1244041087 is about 35270.9666297934. The cubic root of 1244041087 is about 1075.5028725674.

The spelling of 1244041087 in words is "one billion, two hundred forty-four million, forty-one thousand, eighty-seven".