142421712 has 20 divisors (see below), whose sum is σ = 367922880. Its totient is φ = 47473888.

The previous prime is 142421711. The next prime is 142421723. The reversal of 142421712 is 217124241.

142421712 is digitally balanced in base 2, because in such base 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (142421711) 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, 1483512 + ... + 1483607.

It is an arithmetic number, because the mean of its divisors is an integer number (18396144).

Almost surely, 2^142421712 is an apocalyptic number.

142421712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142421712 is an abundant number, since it is smaller than the sum of its proper divisors (225501168).

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

142421712 is a wasteful number, since it uses less digits than its factorization.

142421712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967130 (or 2967124 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 142421712 is about 11934.0568123333. The cubic root of 142421712 is about 522.2262931594.

Adding to 142421712 its reverse (217124241), we get a palindrome (359545953).

The spelling of 142421712 in words is "one hundred forty-two million, four hundred twenty-one thousand, seven hundred twelve".