1244412506 has 4 divisors (see below), whose sum is σ = 1866618762. Its totient is φ = 622206252.

The previous prime is 1244412487. The next prime is 1244412517. The reversal of 1244412506 is 6052144421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6052144421 = 59 ⋅102578719.

It can be written as a sum of positive squares in only one way, i.e., 788205625 + 456206881 = 28075^2 + 21359^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311103125 + ... + 311103128.

Almost surely, 2^1244412506 is an apocalyptic number.

1244412506 is a deficient number, since it is larger than the sum of its proper divisors (622206256).

1244412506 is an equidigital number, since it uses as much as digits as its factorization.

1244412506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622206255.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1244412506 is about 35276.2314597237. The cubic root of 1244412506 is about 1075.6098954136.

Adding to 1244412506 its reverse (6052144421), we get a palindrome (7296556927).

The spelling of 1244412506 in words is "one billion, two hundred forty-four million, four hundred twelve thousand, five hundred six".