1313443142 has 24 divisors (see below), whose sum is σ = 2174709600. Its totient is φ = 594495440.

The previous prime is 1313443141. The next prime is 1313443151. The reversal of 1313443142 is 2413443131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313443141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46484 + ... + 69192.

It is an arithmetic number, because the mean of its divisors is an integer number (90612900).

Almost surely, 2^1313443142 is an apocalyptic number.

1313443142 is a deficient number, since it is larger than the sum of its proper divisors (861266458).

1313443142 is a wasteful number, since it uses less digits than its factorization.

1313443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22972 (or 22961 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 1313443142 is about 36241.4561241681. The cubic root of 1313443142 is about 1095.1419766839.

Adding to 1313443142 its reverse (2413443131), we get a palindrome (3726886273).

The spelling of 1313443142 in words is "one billion, three hundred thirteen million, four hundred forty-three thousand, one hundred forty-two".