142055215 has 16 divisors (see below), whose sum is σ = 172569600. Its totient is φ = 112250880.

The previous prime is 142055203. The next prime is 142055227. The reversal of 142055215 is 512550241.

It is an interprime number because it is at equal distance from previous prime (142055203) and next prime (142055227).

It is not a de Polignac number, because 142055215 - 2⁵ = 142055183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142055215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221295 + ... + 221935.

It is an arithmetic number, because the mean of its divisors is an integer number (10785600).

Almost surely, 2^142055215 is an apocalyptic number.

142055215 is a deficient number, since it is larger than the sum of its proper divisors (30514385).

142055215 is a wasteful number, since it uses less digits than its factorization.

142055215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 142055215 is about 11918.6918325796. The cubic root of 142055215 is about 521.7779561390. Note that the first 3 decimals are identical.

The spelling of 142055215 in words is "one hundred forty-two million, fifty-five thousand, two hundred fifteen".