142422515 has 16 divisors (see below), whose sum is σ = 181478880. Its totient is φ = 106928640.

The previous prime is 142422491. The next prime is 142422541. The reversal of 142422515 is 515224241.

It is not a de Polignac number, because 142422515 - 2¹⁰ = 142421491 is a prime.

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, 30005 + ... + 34425.

It is an arithmetic number, because the mean of its divisors is an integer number (11342430).

Almost surely, 2^142422515 is an apocalyptic number.

142422515 is a deficient number, since it is larger than the sum of its proper divisors (39056365).

142422515 is a wasteful number, since it uses less digits than its factorization.

142422515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822.

The product of its digits is 3200, while the sum is 26.

The square root of 142422515 is about 11934.0904554976. The cubic root of 142422515 is about 522.2272746271.

Adding to 142422515 its reverse (515224241), we get a palindrome (657646756).

The spelling of 142422515 in words is "one hundred forty-two million, four hundred twenty-two thousand, five hundred fifteen".