142745285 has 8 divisors (see below), whose sum is σ = 171500280. Its totient is φ = 114058944.

The previous prime is 142745269. The next prime is 142745293. The reversal of 142745285 is 582547241.

It can be written as a sum of positive squares in 4 ways, for example, as 229441 + 142515844 = 479^2 + 11938^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142745285 - 2⁴ = 142745269 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12470 + ... + 20999.

It is an arithmetic number, because the mean of its divisors is an integer number (21437535).

Almost surely, 2^142745285 is an apocalyptic number.

It is an amenable number.

142745285 is a deficient number, since it is larger than the sum of its proper divisors (28754995).

142745285 is an equidigital number, since it uses as much as digits as its factorization.

142745285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34327.

The product of its digits is 89600, while the sum is 38.

The square root of 142745285 is about 11947.6058271103. The cubic root of 142745285 is about 522.6214822495.

The spelling of 142745285 in words is "one hundred forty-two million, seven hundred forty-five thousand, two hundred eighty-five".