142822305 has 32 divisors (see below), whose sum is σ = 256780800. Its totient is φ = 75309696.

The previous prime is 142822291. The next prime is 142822319. The reversal of 142822305 is 503228241.

142822305 is a `hidden beast` number, since 1 + 428 + 2 + 230 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (142822291) and next prime (142822319).

It is not a de Polignac number, because 142822305 - 2¹⁰ = 142821281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6072 + ... + 17958.

It is an arithmetic number, because the mean of its divisors is an integer number (8024400).

Almost surely, 2^142822305 is an apocalyptic number.

142822305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142822305 is a deficient number, since it is larger than the sum of its proper divisors (113958495).

142822305 is a wasteful number, since it uses less digits than its factorization.

142822305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11990 (or 11984 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 142822305 is about 11950.8286323585. The cubic root of 142822305 is about 522.7154609968.

The spelling of 142822305 in words is "one hundred forty-two million, eight hundred twenty-two thousand, three hundred five".