1244313506 has 4 divisors (see below), whose sum is σ = 1866470262. Its totient is φ = 622156752.

The previous prime is 1244313479. The next prime is 1244313509. The reversal of 1244313506 is 6053134421.

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

It can be written as a sum of positive squares in only one way, i.e., 815616481 + 428697025 = 28559^2 + 20705^2 .

It is a super-2 number, since 2×1244313506² = 3096632202428024072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1244313509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311078375 + ... + 311078378.

Almost surely, 2^1244313506 is an apocalyptic number.

1244313506 is a deficient number, since it is larger than the sum of its proper divisors (622156756).

1244313506 is an equidigital number, since it uses as much as digits as its factorization.

1244313506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622156755.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1244313506 is about 35274.8282207015. The cubic root of 1244313506 is about 1075.5813710556.

Adding to 1244313506 its reverse (6053134421), we get a palindrome (7297447927).

The spelling of 1244313506 in words is "one billion, two hundred forty-four million, three hundred thirteen thousand, five hundred six".