1244131355 has 16 divisors (see below), whose sum is σ = 1501035744. Its totient is φ = 989936640.

The previous prime is 1244131351. The next prime is 1244131379. The reversal of 1244131355 is 5531314421.

It is not a de Polignac number, because 1244131355 - 2² = 1244131351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244131351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113257 + ... + 1114373.

It is an arithmetic number, because the mean of its divisors is an integer number (93814734).

Almost surely, 2^1244131355 is an apocalyptic number.

1244131355 is a deficient number, since it is larger than the sum of its proper divisors (256904389).

1244131355 is a wasteful number, since it uses less digits than its factorization.

1244131355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its digits is 7200, while the sum is 29.

The square root of 1244131355 is about 35272.2462426197. The cubic root of 1244131355 is about 1075.5288848769.

Adding to 1244131355 its reverse (5531314421), we get a palindrome (6775445776).

The spelling of 1244131355 in words is "one billion, two hundred forty-four million, one hundred thirty-one thousand, three hundred fifty-five".