142362221 has 8 divisors (see below), whose sum is σ = 145000800. Its totient is φ = 139731280.

The previous prime is 142362217. The next prime is 142362223. The reversal of 142362221 is 122263241.

It is a happy number.

142362221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142362221 - 2² = 142362217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142362223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46970 + ... + 49908.

It is an arithmetic number, because the mean of its divisors is an integer number (18125100).

Almost surely, 2^142362221 is an apocalyptic number.

It is an amenable number.

142362221 is a deficient number, since it is larger than the sum of its proper divisors (2638579).

142362221 is an equidigital number, since it uses as much as digits as its factorization.

142362221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819.

The product of its digits is 1152, while the sum is 23.

The square root of 142362221 is about 11931.5640634411. The cubic root of 142362221 is about 522.1535699518.

The spelling of 142362221 in words is "one hundred forty-two million, three hundred sixty-two thousand, two hundred twenty-one".