142142502 has 32 divisors (see below), whose sum is σ = 299013120. Its totient is φ = 44984160.

The previous prime is 142142479. The next prime is 142142537. The reversal of 142142502 is 205241241.

It is a congruent number.

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, 2649 + ... + 17067.

It is an arithmetic number, because the mean of its divisors is an integer number (9344160).

Almost surely, 2^142142502 is an apocalyptic number.

142142502 is an abundant number, since it is smaller than the sum of its proper divisors (156870618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142142502 is a wasteful number, since it uses less digits than its factorization.

142142502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14508.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142142502 is about 11922.3530395640. The cubic root of 142142502 is about 521.8848045154.

Adding to 142142502 its reverse (205241241), we get a palindrome (347383743).

The spelling of 142142502 in words is "one hundred forty-two million, one hundred forty-two thousand, five hundred two".