142918315 has 4 divisors (see below), whose sum is σ = 171501984. Its totient is φ = 114334648.

The previous prime is 142918313. The next prime is 142918319. The reversal of 142918315 is 513819241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142918315 - 2¹ = 142918313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142918313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14291827 + ... + 14291836.

It is an arithmetic number, because the mean of its divisors is an integer number (42875496).

Almost surely, 2^142918315 is an apocalyptic number.

142918315 is a deficient number, since it is larger than the sum of its proper divisors (28583669).

142918315 is an equidigital number, since it uses as much as digits as its factorization.

142918315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28583668.

The product of its digits is 8640, while the sum is 34.

The square root of 142918315 is about 11954.8448337902. The cubic root of 142918315 is about 522.8325637842.

The spelling of 142918315 in words is "one hundred forty-two million, nine hundred eighteen thousand, three hundred fifteen".