1244377117 has 2 divisors, whose sum is σ = 1244377118. Its totient is φ = 1244377116.

The previous prime is 1244377109. The next prime is 1244377139. The reversal of 1244377117 is 7117734421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 927750681 + 316626436 = 30459^2 + 17794^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244377117 - 2³ = 1244377109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244377517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622188558 + 622188559.

It is an arithmetic number, because the mean of its divisors is an integer number (622188559).

Almost surely, 2^1244377117 is an apocalyptic number.

It is an amenable number.

1244377117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244377117 is an equidigital number, since it uses as much as digits as its factorization.

1244377117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 37.

The square root of 1244377117 is about 35275.7298577932. The cubic root of 1244377117 is about 1075.5996991378.

The spelling of 1244377117 in words is "one billion, two hundred forty-four million, three hundred seventy-seven thousand, one hundred seventeen".