142255885 has 4 divisors (see below), whose sum is σ = 170707068. Its totient is φ = 113804704.

The previous prime is 142255879. The next prime is 142255889. The reversal of 142255885 is 588552241.

142255885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588552241 = 659 ⋅893099.

It can be written as a sum of positive squares in 2 ways, for example, as 47251876 + 95004009 = 6874^2 + 9747^2 .

It is a cyclic number.

It is not a de Polignac number, because 142255885 - 2³ = 142255877 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142255889) 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, 14225584 + ... + 14225593.

It is an arithmetic number, because the mean of its divisors is an integer number (42676767).

Almost surely, 2^142255885 is an apocalyptic number.

It is an amenable number.

142255885 is a deficient number, since it is larger than the sum of its proper divisors (28451183).

142255885 is an equidigital number, since it uses as much as digits as its factorization.

142255885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28451182.

The product of its digits is 128000, while the sum is 40.

The square root of 142255885 is about 11927.1071513590. The cubic root of 142255885 is about 522.0235318194.

The spelling of 142255885 in words is "one hundred forty-two million, two hundred fifty-five thousand, eight hundred eighty-five".