142212115 has 8 divisors (see below), whose sum is σ = 170756640. Its totient is φ = 113701632.

The previous prime is 142212107. The next prime is 142212139. The reversal of 142212115 is 511212241.

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

It is a cyclic number.

It is not a de Polignac number, because 142212115 - 2³ = 142212107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142212092 and 142212101.

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, 1827 + ... + 16963.

It is an arithmetic number, because the mean of its divisors is an integer number (21344580).

Almost surely, 2^142212115 is an apocalyptic number.

142212115 is a deficient number, since it is larger than the sum of its proper divisors (28544525).

142212115 is a wasteful number, since it uses less digits than its factorization.

142212115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17021.

The product of its digits is 160, while the sum is 19.

The square root of 142212115 is about 11925.2721142958. The cubic root of 142212115 is about 521.9699867263.

Adding to 142212115 its reverse (511212241), we get a palindrome (653424356).

The spelling of 142212115 in words is "one hundred forty-two million, two hundred twelve thousand, one hundred fifteen".