142855529 has 4 divisors (see below), whose sum is σ = 142903620. Its totient is φ = 142807440.

The previous prime is 142855519. The next prime is 142855549. The reversal of 142855529 is 925558241.

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 16810000 + 126045529 = 4100^2 + 11227^2 .

It is a cyclic number.

It is not a de Polignac number, because 142855529 - 2²⁴ = 126078313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142855519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19274 + ... + 25635.

It is an arithmetic number, because the mean of its divisors is an integer number (35725905).

Almost surely, 2^142855529 is an apocalyptic number.

It is an amenable number.

142855529 is a deficient number, since it is larger than the sum of its proper divisors (48091).

142855529 is an equidigital number, since it uses as much as digits as its factorization.

142855529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48090.

The product of its digits is 144000, while the sum is 41.

The square root of 142855529 is about 11952.2185806653. The cubic root of 142855529 is about 522.7559900351.

The spelling of 142855529 in words is "one hundred forty-two million, eight hundred fifty-five thousand, five hundred twenty-nine".