142315442 has 8 divisors (see below), whose sum is σ = 213638016. Its totient is φ = 71102772.

The previous prime is 142315417. The next prime is 142315487. The reversal of 142315442 is 244513241.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24158 + ... + 29465.

It is an arithmetic number, because the mean of its divisors is an integer number (26704752).

Almost surely, 2^142315442 is an apocalyptic number.

142315442 is a deficient number, since it is larger than the sum of its proper divisors (71322574).

142315442 is a wasteful number, since it uses less digits than its factorization.

142315442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54952.

The product of its digits is 3840, while the sum is 26.

The square root of 142315442 is about 11929.6035977731. The cubic root of 142315442 is about 522.0963719641.

Adding to 142315442 its reverse (244513241), we get a palindrome (386828683).

The spelling of 142315442 in words is "one hundred forty-two million, three hundred fifteen thousand, four hundred forty-two".