142314221 has 8 divisors (see below), whose sum is σ = 163737600. Its totient is φ = 121164048.

The previous prime is 142314217. The next prime is 142314233. The reversal of 142314221 is 122413241.

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 142314221 - 2² = 142314217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142314193 and 142314202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142314241) 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, 67181 + ... + 69266.

It is an arithmetic number, because the mean of its divisors is an integer number (20467200).

Almost surely, 2^142314221 is an apocalyptic number.

It is an amenable number.

142314221 is a deficient number, since it is larger than the sum of its proper divisors (21423379).

142314221 is a wasteful number, since it uses less digits than its factorization.

142314221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136603.

The product of its digits is 384, while the sum is 20.

The square root of 142314221 is about 11929.5524224507. The cubic root of 142314221 is about 522.0948788455.

Adding to 142314221 its reverse (122413241), we get a palindrome (264727462).

The spelling of 142314221 in words is "one hundred forty-two million, three hundred fourteen thousand, two hundred twenty-one".