142442015 has 16 divisors (see below), whose sum is σ = 177789216. Its totient is φ = 109468800.

The previous prime is 142441973. The next prime is 142442023. The reversal of 142442015 is 510244241.

It is not a de Polignac number, because 142442015 - 2¹⁴ = 142425631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7685 + ... + 18545.

It is an arithmetic number, because the mean of its divisors is an integer number (11111826).

Almost surely, 2^142442015 is an apocalyptic number.

142442015 is a deficient number, since it is larger than the sum of its proper divisors (35347201).

142442015 is a wasteful number, since it uses less digits than its factorization.

142442015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 142442015 is about 11934.9074148064. The cubic root of 142442015 is about 522.2511073924.

Adding to 142442015 its reverse (510244241), we get a palindrome (652686256).

The spelling of 142442015 in words is "one hundred forty-two million, four hundred forty-two thousand, fifteen".