142040302 has 8 divisors (see below), whose sum is σ = 213890256. Its totient is φ = 70743552.

The previous prime is 142040281. The next prime is 142040303. The reversal of 142040302 is 203040241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142040303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137658 + ... + 138685.

It is an arithmetic number, because the mean of its divisors is an integer number (26736282).

Almost surely, 2^142040302 is an apocalyptic number.

142040302 is a deficient number, since it is larger than the sum of its proper divisors (71849954).

142040302 is a wasteful number, since it uses less digits than its factorization.

142040302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276602.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 142040302 is about 11918.0662021991. The cubic root of 142040302 is about 521.7596966967.

Adding to 142040302 its reverse (203040241), we get a palindrome (345080543).

The spelling of 142040302 in words is "one hundred forty-two million, forty thousand, three hundred two".