142241215 has 8 divisors (see below), whose sum is σ = 171777600. Its totient is φ = 113067552.

The previous prime is 142241213. The next prime is 142241243. The reversal of 142241215 is 512142241.

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 142241215 - 2¹ = 142241213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142241213) 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, 89815 + ... + 91384.

It is an arithmetic number, because the mean of its divisors is an integer number (21472200).

Almost surely, 2^142241215 is an apocalyptic number.

142241215 is a deficient number, since it is larger than the sum of its proper divisors (29536385).

142241215 is a wasteful number, since it uses less digits than its factorization.

142241215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181361.

The product of its digits is 640, while the sum is 22.

The square root of 142241215 is about 11926.4921498318. The cubic root of 142241215 is about 522.0055868126.

Adding to 142241215 its reverse (512142241), we get a palindrome (654383456).

The spelling of 142241215 in words is "one hundred forty-two million, two hundred forty-one thousand, two hundred fifteen".