142221364 has 12 divisors (see below), whose sum is σ = 249062688. Its totient is φ = 71060600.

The previous prime is 142221361. The next prime is 142221379. The reversal of 142221364 is 463122241.

It is a happy number.

142221364 is digitally balanced in base 3, 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 (142221361) 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, 5722 + ... + 17809.

It is an arithmetic number, because the mean of its divisors is an integer number (20755224).

Almost surely, 2^142221364 is an apocalyptic number.

It is an amenable number.

142221364 is a deficient number, since it is larger than the sum of its proper divisors (106841324).

142221364 is a wasteful number, since it uses less digits than its factorization.

142221364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25046 (or 25044 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 142221364 is about 11925.6598978841. The cubic root of 142221364 is about 521.9813022080.

The spelling of 142221364 in words is "one hundred forty-two million, two hundred twenty-one thousand, three hundred sixty-four".