142812215 has 24 divisors (see below), whose sum is σ = 214693920. Its totient is φ = 90393408.

The previous prime is 142812203. The next prime is 142812217. The reversal of 142812215 is 512218241.

It is not a de Polignac number, because 142812215 - 2⁴ = 142812199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142812217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19235 + ... + 25604.

It is an arithmetic number, because the mean of its divisors is an integer number (8945580).

Almost surely, 2^142812215 is an apocalyptic number.

142812215 is a deficient number, since it is larger than the sum of its proper divisors (71881705).

142812215 is a wasteful number, since it uses less digits than its factorization.

142812215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44871 (or 44864 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 142812215 is about 11950.4064784425. The cubic root of 142812215 is about 522.7031512407.

The spelling of 142812215 in words is "one hundred forty-two million, eight hundred twelve thousand, two hundred fifteen".