142438615 has 8 divisors (see below), whose sum is σ = 186465168. Its totient is φ = 103591680.

The previous prime is 142438607. The next prime is 142438627. The reversal of 142438615 is 516834241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142438615 - 2³ = 142438607 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 7 ways as a sum of consecutive naturals, for example, 1294842 + ... + 1294951.

It is an arithmetic number, because the mean of its divisors is an integer number (23308146).

Almost surely, 2^142438615 is an apocalyptic number.

142438615 is a deficient number, since it is larger than the sum of its proper divisors (44026553).

142438615 is a wasteful number, since it uses less digits than its factorization.

142438615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589809.

The product of its digits is 23040, while the sum is 34.

The square root of 142438615 is about 11934.7649746445. The cubic root of 142438615 is about 522.2469520925.

The spelling of 142438615 in words is "one hundred forty-two million, four hundred thirty-eight thousand, six hundred fifteen".