142398312 has 96 divisors (see below), whose sum is σ = 435981600. Its totient is φ = 38537856.

The previous prime is 142398301. The next prime is 142398317. The reversal of 142398312 is 213893241.

142398312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142398317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19158 + ... + 25530.

It is an arithmetic number, because the mean of its divisors is an integer number (4541475).

Almost surely, 2^142398312 is an apocalyptic number.

142398312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142398312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217990800).

142398312 is an abundant number, since it is smaller than the sum of its proper divisors (293583288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142398312 is a wasteful number, since it uses less digits than its factorization.

142398312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6404 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 142398312 is about 11933.0763845707. The cubic root of 142398312 is about 522.1976908618.

The spelling of 142398312 in words is "one hundred forty-two million, three hundred ninety-eight thousand, three hundred twelve".