142481578 has 16 divisors (see below), whose sum is σ = 218050560. Its totient is φ = 69806016.

The previous prime is 142481569. The next prime is 142481579. The reversal of 142481578 is 875184241.

It is a self number, because there is not a number n which added to its sum of digits gives 142481578.

It is not an unprimeable number, because it can be changed into a prime (142481579) 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 7 ways as a sum of consecutive naturals, for example, 37975 + ... + 41557.

It is an arithmetic number, because the mean of its divisors is an integer number (13628160).

Almost surely, 2^142481578 is an apocalyptic number.

142481578 is a deficient number, since it is larger than the sum of its proper divisors (75568982).

142481578 is a wasteful number, since it uses less digits than its factorization.

142481578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981.

The product of its digits is 71680, while the sum is 40.

The square root of 142481578 is about 11936.5647487039. The cubic root of 142481578 is about 522.2994543354.

The spelling of 142481578 in words is "one hundred forty-two million, four hundred eighty-one thousand, five hundred seventy-eight".