142238602 has 32 divisors (see below), whose sum is σ = 243638784. Its totient is φ = 61689600.

The previous prime is 142238597. The next prime is 142238623. The reversal of 142238602 is 206832241.

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 15 ways as a sum of consecutive naturals, for example, 48358 + ... + 51214.

It is an arithmetic number, because the mean of its divisors is an integer number (7613712).

Almost surely, 2^142238602 is an apocalyptic number.

142238602 is a deficient number, since it is larger than the sum of its proper divisors (101400182).

142238602 is a wasteful number, since it uses less digits than its factorization.

142238602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 142238602 is about 11926.3826032876. The cubic root of 142238602 is about 522.0023903435.

The spelling of 142238602 in words is "one hundred forty-two million, two hundred thirty-eight thousand, six hundred two".