142225515 has 48 divisors (see below), whose sum is σ = 254663136. Its totient is φ = 73382400.

The previous prime is 142225513. The next prime is 142225547. The reversal of 142225515 is 515522241.

142225515 is a `hidden beast` number, since 142 + 2 + 2 + 5 + 515 = 666.

It is not a de Polignac number, because 142225515 - 2¹ = 142225513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142225511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289420 + ... + 289910.

It is an arithmetic number, because the mean of its divisors is an integer number (5305482).

Almost surely, 2^142225515 is an apocalyptic number.

142225515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142225515 is a deficient number, since it is larger than the sum of its proper divisors (112437621).

142225515 is a wasteful number, since it uses less digits than its factorization.

142225515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 697 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 142225515 is about 11925.8339331051. The cubic root of 142225515 is about 521.9863804964.

Adding to 142225515 its reverse (515522241), we get a palindrome (657747756).

The spelling of 142225515 in words is "one hundred forty-two million, two hundred twenty-five thousand, five hundred fifteen".