142687312 has 20 divisors (see below), whose sum is σ = 277003476. Its totient is φ = 71202560.

The previous prime is 142687309. The next prime is 142687319. The reversal of 142687312 is 213786241.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 130325056 = 3516^2 + 11416^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142687319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223 + ... + 16894.

Almost surely, 2^142687312 is an apocalyptic number.

It is an amenable number.

142687312 is a deficient number, since it is larger than the sum of its proper divisors (134316164).

142687312 is a wasteful number, since it uses less digits than its factorization.

142687312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17646 (or 17640 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 142687312 is about 11945.1794461197. The cubic root of 142687312 is about 522.5507220892.

The spelling of 142687312 in words is "one hundred forty-two million, six hundred eighty-seven thousand, three hundred twelve".