142212864 has 144 divisors (see below), whose sum is σ = 403828992. Its totient is φ = 44335104.

The previous prime is 142212823. The next prime is 142212883. The reversal of 142212864 is 468212241.

142212864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1466064 + ... + 1466160.

It is an arithmetic number, because the mean of its divisors is an integer number (2804368).

Almost surely, 2^142212864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142212864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201914496).

142212864 is an abundant number, since it is smaller than the sum of its proper divisors (261616128).

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

142212864 is an equidigital number, since it uses as much as digits as its factorization.

142212864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 208 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 142212864 is about 11925.3035181500. The cubic root of 142212864 is about 521.9709030918.

The spelling of 142212864 in words is "one hundred forty-two million, two hundred twelve thousand, eight hundred sixty-four".