142331280 has 400 divisors, whose sum is σ = 583504320. Its totient is φ = 28449792.

The previous prime is 142331269. The next prime is 142331281. The reversal of 142331280 is 82133241.

142331280 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 142331280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142331281) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7491111 + ... + 7491129.

Almost surely, 2^142331280 is an apocalyptic number.

142331280 is a gapful number since it is divisible by the number (10) 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 142331280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291752160).

142331280 is an abundant number, since it is smaller than the sum of its proper divisors (441173040).

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

142331280 is a wasteful number, since it uses less digits than its factorization.

142331280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 142331280 is about 11930.2673901300. The cubic root of 142331280 is about 522.1157389316.

The spelling of 142331280 in words is "one hundred forty-two million, three hundred thirty-one thousand, two hundred eighty".