1244412497 has 4 divisors (see below), whose sum is σ = 1244687796. Its totient is φ = 1244137200.

The previous prime is 1244412487. The next prime is 1244412517. The reversal of 1244412497 is 7942144421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 613850176 + 630562321 = 24776^2 + 25111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244412497 - 2¹⁴ = 1244396113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1244412497.

It is not an unprimeable number, because it can be changed into a prime (1244412457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130754 + ... + 139947.

It is an arithmetic number, because the mean of its divisors is an integer number (311171949).

Almost surely, 2^1244412497 is an apocalyptic number.

It is an amenable number.

1244412497 is a deficient number, since it is larger than the sum of its proper divisors (275299).

1244412497 is an equidigital number, since it uses as much as digits as its factorization.

1244412497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275298.

The product of its digits is 64512, while the sum is 38.

The square root of 1244412497 is about 35276.2313321591. The cubic root of 1244412497 is about 1075.6098928206.

The spelling of 1244412497 in words is "one billion, two hundred forty-four million, four hundred twelve thousand, four hundred ninety-seven".