142315305 has 64 divisors (see below), whose sum is σ = 258128640. Its totient is φ = 66355200.

The previous prime is 142315297. The next prime is 142315307. The reversal of 142315305 is 503513241.

It is not a de Polignac number, because 142315305 - 2³ = 142315297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142315307) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 737289 + ... + 737481.

It is an arithmetic number, because the mean of its divisors is an integer number (4033260).

Almost surely, 2^142315305 is an apocalyptic number.

142315305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142315305 is a deficient number, since it is larger than the sum of its proper divisors (115813335).

142315305 is a wasteful number, since it uses less digits than its factorization.

142315305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 142315305 is about 11929.5978557536. The cubic root of 142315305 is about 522.0962044320.

Adding to 142315305 its reverse (503513241), we get a palindrome (645828546).

The spelling of 142315305 in words is "one hundred forty-two million, three hundred fifteen thousand, three hundred five".