142544313 has 32 divisors (see below), whose sum is σ = 219269120. Its totient is φ = 91445760.

The previous prime is 142544287. The next prime is 142544329. The reversal of 142544313 is 313445241.

It is a happy number.

It is not a de Polignac number, because 142544313 - 2⁸ = 142544057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142544333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96168 + ... + 97638.

It is an arithmetic number, because the mean of its divisors is an integer number (6852160).

Almost surely, 2^142544313 is an apocalyptic number.

It is an amenable number.

142544313 is a deficient number, since it is larger than the sum of its proper divisors (76724807).

142544313 is a wasteful number, since it uses less digits than its factorization.

142544313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614 (or 1608 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 142544313 is about 11939.1923093650. The cubic root of 142544313 is about 522.3760996787.

Adding to 142544313 its reverse (313445241), we get a palindrome (455989554).

The spelling of 142544313 in words is "one hundred forty-two million, five hundred forty-four thousand, three hundred thirteen".