142870265 has 4 divisors (see below), whose sum is σ = 171444324. Its totient is φ = 114296208.

The previous prime is 142870249. The next prime is 142870339. The reversal of 142870265 is 562078241.

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 61293241 + 81577024 = 7829^2 + 9032^2 .

It is a cyclic number.

It is not a de Polignac number, because 142870265 - 2⁴ = 142870249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14287022 + ... + 14287031.

It is an arithmetic number, because the mean of its divisors is an integer number (42861081).

Almost surely, 2^142870265 is an apocalyptic number.

It is an amenable number.

142870265 is a deficient number, since it is larger than the sum of its proper divisors (28574059).

142870265 is an equidigital number, since it uses as much as digits as its factorization.

142870265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28574058.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 142870265 is about 11952.8350193584. The cubic root of 142870265 is about 522.7739640621.

The spelling of 142870265 in words is "one hundred forty-two million, eight hundred seventy thousand, two hundred sixty-five".