142264165 has 4 divisors (see below), whose sum is σ = 170717004. Its totient is φ = 113811328.

The previous prime is 142264121. The next prime is 142264207. The reversal of 142264165 is 561462241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561462241 = 41 ⋅13694201.

It can be written as a sum of positive squares in 2 ways, for example, as 27217089 + 115047076 = 5217^2 + 10726^2 .

It is a cyclic number.

It is not a de Polignac number, because 142264165 - 2¹¹ = 142262117 is a prime.

It is a Duffinian number.

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, 14226412 + ... + 14226421.

It is an arithmetic number, because the mean of its divisors is an integer number (42679251).

Almost surely, 2^142264165 is an apocalyptic number.

It is an amenable number.

142264165 is a deficient number, since it is larger than the sum of its proper divisors (28452839).

142264165 is an equidigital number, since it uses as much as digits as its factorization.

142264165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28452838.

The product of its digits is 11520, while the sum is 31.

The square root of 142264165 is about 11927.4542547855. The cubic root of 142264165 is about 522.0336597448.

The spelling of 142264165 in words is "one hundred forty-two million, two hundred sixty-four thousand, one hundred sixty-five".