142504165 has 4 divisors (see below), whose sum is σ = 171005004. Its totient is φ = 114003328.

The previous prime is 142504163. The next prime is 142504169. The reversal of 142504165 is 561405241.

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 106131204 + 36372961 = 10302^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 142504165 - 2¹ = 142504163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142504163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14250412 + ... + 14250421.

It is an arithmetic number, because the mean of its divisors is an integer number (42751251).

Almost surely, 2^142504165 is an apocalyptic number.

It is an amenable number.

142504165 is a deficient number, since it is larger than the sum of its proper divisors (28500839).

142504165 is an equidigital number, since it uses as much as digits as its factorization.

142504165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28500838.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 142504165 is about 11937.5108376914. The cubic root of 142504165 is about 522.3270521826.

The spelling of 142504165 in words is "one hundred forty-two million, five hundred four thousand, one hundred sixty-five".