142431316 has 12 divisors (see below), whose sum is σ = 249351732. Its totient is φ = 71187968.

The previous prime is 142431307. The next prime is 142431323. The reversal of 142431316 is 613134241.

It can be written as a sum of positive squares in 2 ways, for example, as 116726416 + 25704900 = 10804^2 + 5070^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8436 + ... + 18868.

It is an arithmetic number, because the mean of its divisors is an integer number (20779311).

Almost surely, 2^142431316 is an apocalyptic number.

It is an amenable number.

142431316 is a deficient number, since it is larger than the sum of its proper divisors (106920416).

142431316 is a wasteful number, since it uses less digits than its factorization.

142431316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13850 (or 13848 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 142431316 is about 11934.4591833899. The cubic root of 142431316 is about 522.2380314179.

Adding to 142431316 its reverse (613134241), we get a palindrome (755565557).

The spelling of 142431316 in words is "one hundred forty-two million, four hundred thirty-one thousand, three hundred sixteen".