142747212 has 18 divisors (see below), whose sum is σ = 333173428. Its totient is φ = 47568608.

The previous prime is 142747211. The next prime is 142747289. The reversal of 142747212 is 212747241.

142747212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142747212.

It is not an unprimeable number, because it can be changed into a prime (142747211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39664 + ... + 43112.

Almost surely, 2^142747212 is an apocalyptic number.

142747212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142747212 is an abundant number, since it is smaller than the sum of its proper divisors (190426216).

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

142747212 is an frugal number, since it uses more digits than its factorization.

142747212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905 (or 3454 counting only the distinct ones).

The product of its digits is 6272, while the sum is 30.

The square root of 142747212 is about 11947.6864706101. The cubic root of 142747212 is about 522.6238339607.

The spelling of 142747212 in words is "one hundred forty-two million, seven hundred forty-seven thousand, two hundred twelve".