142225765 has 32 divisors (see below), whose sum is σ = 192036096. Its totient is φ = 100239360.

The previous prime is 142225751. The next prime is 142225771. The reversal of 142225765 is 567522241.

It is not a de Polignac number, because 142225765 - 2⁹ = 142225253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142225765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282504 + ... + 283006.

It is an arithmetic number, because the mean of its divisors is an integer number (6001128).

Almost surely, 2^142225765 is an apocalyptic number.

It is an amenable number.

142225765 is a deficient number, since it is larger than the sum of its proper divisors (49810331).

142225765 is a wasteful number, since it uses less digits than its factorization.

142225765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669.

The product of its digits is 33600, while the sum is 34.

The square root of 142225765 is about 11925.8444145478. The cubic root of 142225765 is about 521.9866863405.

The spelling of 142225765 in words is "one hundred forty-two million, two hundred twenty-five thousand, seven hundred sixty-five".