142219915 has 8 divisors (see below), whose sum is σ = 176549040. Its totient is φ = 109852512.

The previous prime is 142219907. The next prime is 142219933. The reversal of 142219915 is 519912241.

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 142219915 - 2³ = 142219907 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 490269 + ... + 490558.

It is an arithmetic number, because the mean of its divisors is an integer number (22068630).

Almost surely, 2^142219915 is an apocalyptic number.

142219915 is a deficient number, since it is larger than the sum of its proper divisors (34329125).

142219915 is an equidigital number, since it uses as much as digits as its factorization.

142219915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980861.

The product of its digits is 6480, while the sum is 34.

The square root of 142219915 is about 11925.5991463742. The cubic root of 142219915 is about 521.9795294938.

The spelling of 142219915 in words is "one hundred forty-two million, two hundred nineteen thousand, nine hundred fifteen".