142935865865 has 8 divisors (see below), whose sum is σ = 184717119048. Its totient is φ = 105552639360.

The previous prime is 142935865847. The next prime is 142935865867. The reversal of 142935865865 is 568568539241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3794929609 + 139140936256 = 61603^2 + 373016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-142935865865 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142935865798 and 142935865807.

It is not an unprimeable number, because it can be changed into a prime (142935865867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099506596 + ... + 1099506725.

It is an arithmetic number, because the mean of its divisors is an integer number (23089639881).

Almost surely, 2^142935865865 is an apocalyptic number.

It is an amenable number.

142935865865 is a deficient number, since it is larger than the sum of its proper divisors (41781253183).

142935865865 is a wasteful number, since it uses less digits than its factorization.

142935865865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199013339.

The product of its digits is 62208000, while the sum is 62.

The spelling of 142935865865 in words is "one hundred forty-two billion, nine hundred thirty-five million, eight hundred sixty-five thousand, eight hundred sixty-five".