1243314142 has 24 divisors (see below), whose sum is σ = 2297074464. Its totient is φ = 501504192.

The previous prime is 1243314103. The next prime is 1243314143. The reversal of 1243314142 is 2414133421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243314143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371478 + ... + 374809.

It is an arithmetic number, because the mean of its divisors is an integer number (95711436).

Almost surely, 2^1243314142 is an apocalyptic number.

1243314142 is a deficient number, since it is larger than the sum of its proper divisors (1053760322).

1243314142 is a wasteful number, since it uses less digits than its factorization.

1243314142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746320 (or 746313 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1243314142 is about 35260.6599768070. The cubic root of 1243314142 is about 1075.2933447153.

Adding to 1243314142 its reverse (2414133421), we get a palindrome (3657447563).

The spelling of 1243314142 in words is "one billion, two hundred forty-three million, three hundred fourteen thousand, one hundred forty-two".