142300515 has 16 divisors (see below), whose sum is σ = 260206848. Its totient is φ = 65051616.

The previous prime is 142300511. The next prime is 142300531. The reversal of 142300515 is 515003241.

It is not a de Polignac number, because 142300515 - 2² = 142300511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 142300491 and 142300500.

It is not an unprimeable number, because it can be changed into a prime (142300511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677517 + ... + 677726.

It is an arithmetic number, because the mean of its divisors is an integer number (16262928).

Almost surely, 2^142300515 is an apocalyptic number.

142300515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142300515 is a deficient number, since it is larger than the sum of its proper divisors (117906333).

142300515 is a wasteful number, since it uses less digits than its factorization.

142300515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355258.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 142300515 is about 11928.9779528675. The cubic root of 142300515 is about 522.0781176671.

Adding to 142300515 its reverse (515003241), we get a palindrome (657303756).

The spelling of 142300515 in words is "one hundred forty-two million, three hundred thousand, five hundred fifteen".