142248215 has 16 divisors (see below), whose sum is σ = 178849728. Its totient is φ = 108404736.

The previous prime is 142248209. The next prime is 142248217. The reversal of 142248215 is 512842241.

It is a cyclic number.

It is not a de Polignac number, because 142248215 - 2⁴ = 142248199 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 (142248217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27149 + ... + 31961.

It is an arithmetic number, because the mean of its divisors is an integer number (11178108).

Almost surely, 2^142248215 is an apocalyptic number.

142248215 is a deficient number, since it is larger than the sum of its proper divisors (36601513).

142248215 is a wasteful number, since it uses less digits than its factorization.

142248215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098.

The product of its digits is 5120, while the sum is 29.

The square root of 142248215 is about 11926.7856105491. The cubic root of 142248215 is about 522.0141496827.

The spelling of 142248215 in words is "one hundred forty-two million, two hundred forty-eight thousand, two hundred fifteen".