142354145 has 4 divisors (see below), whose sum is σ = 170824980. Its totient is φ = 113883312.

The previous prime is 142354087. The next prime is 142354151. The reversal of 142354145 is 541453241.

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 95335696 + 47018449 = 9764^2 + 6857^2 .

It is a cyclic number.

It is not a de Polignac number, because 142354145 - 2⁶ = 142354081 is a prime.

It is an unprimeable number.

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, 14235410 + ... + 14235419.

It is an arithmetic number, because the mean of its divisors is an integer number (42706245).

Almost surely, 2^142354145 is an apocalyptic number.

It is an amenable number.

142354145 is a deficient number, since it is larger than the sum of its proper divisors (28470835).

142354145 is an equidigital number, since it uses as much as digits as its factorization.

142354145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28470834.

The product of its digits is 9600, while the sum is 29.

The square root of 142354145 is about 11931.2256285765. The cubic root of 142354145 is about 522.1436960964.

The spelling of 142354145 in words is "one hundred forty-two million, three hundred fifty-four thousand, one hundred forty-five".