1244142103 has 8 divisors (see below), whose sum is σ = 1259078400. Its totient is φ = 1229293920.

The previous prime is 1244142071. The next prime is 1244142113. The reversal of 1244142103 is 3012414421.

It is a happy number.

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 1244142103 - 2⁵ = 1244142071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244142113) 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, 6601 + ... + 50317.

It is an arithmetic number, because the mean of its divisors is an integer number (157384800).

Almost surely, 2^1244142103 is an apocalyptic number.

1244142103 is a deficient number, since it is larger than the sum of its proper divisors (14936297).

1244142103 is a wasteful number, since it uses less digits than its factorization.

1244142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44057.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1244142103 is about 35272.3986000385. The cubic root of 1244142103 is about 1075.5319820180.

Adding to 1244142103 its reverse (3012414421), we get a palindrome (4256556524).

The spelling of 1244142103 in words is "one billion, two hundred forty-four million, one hundred forty-two thousand, one hundred three".