142635025 has 12 divisors (see below), whose sum is σ = 190473052. Its totient is φ = 105330240.

The previous prime is 142635013. The next prime is 142635047. The reversal of 142635025 is 520536241.

It can be written as a sum of positive squares in 6 ways, for example, as 24760576 + 117874449 = 4976^2 + 10857^2 .

It is a de Polignac number, because none of the positive numbers 2^k-142635025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142634984 and 142635002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219114 + ... + 219763.

Almost surely, 2^142635025 is an apocalyptic number.

It is an amenable number.

142635025 is a deficient number, since it is larger than the sum of its proper divisors (47838027).

142635025 is a wasteful number, since it uses less digits than its factorization.

142635025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438900 (or 438895 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 142635025 is about 11942.9906221181. The cubic root of 142635025 is about 522.4868856548.

The spelling of 142635025 in words is "one hundred forty-two million, six hundred thirty-five thousand, twenty-five".