1244142431 has 8 divisors (see below), whose sum is σ = 1441355424. Its totient is φ = 1051799040.

The previous prime is 1244142413. The next prime is 1244142451. The reversal of 1244142431 is 1342414421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1244142431 - 2¹⁰ = 1244141407 is a prime.

It is a super-3 number, since 3×1244142431³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 1244142431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244142451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216850 + ... + 1217871.

It is an arithmetic number, because the mean of its divisors is an integer number (180169428).

Almost surely, 2^1244142431 is an apocalyptic number.

1244142431 is a deficient number, since it is larger than the sum of its proper divisors (197212993).

1244142431 is an equidigital number, since it uses as much as digits as its factorization.

1244142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434801.

The product of its digits is 3072, while the sum is 26.

The square root of 1244142431 is about 35272.4032495661. The cubic root of 1244142431 is about 1075.5320765341.

Adding to 1244142431 its reverse (1342414421), we get a palindrome (2586556852).

It can be divided in two parts, 12441 and 42431, that added together give a cube (54872 = 38³).

The spelling of 1244142431 in words is "one billion, two hundred forty-four million, one hundred forty-two thousand, four hundred thirty-one".