142825 has 12 divisors (see below), whose sum is σ = 184140. Its totient is φ = 109760.

The previous prime is 142811. The next prime is 142837. The reversal of 142825 is 528241.

It can be written as a sum of positive squares in 6 ways, for example, as 5184 + 137641 = 72^2 + 371^2 .

It is not a de Polignac number, because 142825 - 2⁷ = 142697 is a prime.

It is an Ulam number.

142825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 142796 and 142805.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 627 + ... + 823.

It is an arithmetic number, because the mean of its divisors is an integer number (15345).

2¹⁴²⁸²⁵ is an apocalyptic number.

It is an amenable number.

142825 is a deficient number, since it is larger than the sum of its proper divisors (41315).

142825 is a wasteful number, since it uses less digits than its factorization.

142825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 231 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 142825 is about 377.9219496139. The cubic root of 142825 is about 52.2718748787.

The spelling of 142825 in words is "one hundred forty-two thousand, eight hundred twenty-five".