142252765 has 4 divisors (see below), whose sum is σ = 170703324. Its totient is φ = 113802208.

The previous prime is 142252741. The next prime is 142252777. The reversal of 142252765 is 567252241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23921881 + 118330884 = 4891^2 + 10878^2 .

It is a cyclic number.

It is not a de Polignac number, because 142252765 - 2⁷ = 142252637 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 142252765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14225272 + ... + 14225281.

It is an arithmetic number, because the mean of its divisors is an integer number (42675831).

Almost surely, 2^142252765 is an apocalyptic number.

It is an amenable number.

142252765 is a deficient number, since it is larger than the sum of its proper divisors (28450559).

142252765 is an equidigital number, since it uses as much as digits as its factorization.

142252765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28450558.

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

The square root of 142252765 is about 11926.9763561432. The cubic root of 142252765 is about 522.0197153977.

The spelling of 142252765 in words is "one hundred forty-two million, two hundred fifty-two thousand, seven hundred sixty-five".