142740134 has 16 divisors (see below), whose sum is σ = 219492240. Its totient is φ = 69582240.

The previous prime is 142740133. The next prime is 142740137. The reversal of 142740134 is 431047241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142740133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59804 + ... + 62144.

It is an arithmetic number, because the mean of its divisors is an integer number (13718265).

Almost surely, 2^142740134 is an apocalyptic number.

142740134 is a deficient number, since it is larger than the sum of its proper divisors (76752106).

142740134 is a wasteful number, since it uses less digits than its factorization.

142740134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 142740134 is about 11947.3902589645. The cubic root of 142740134 is about 522.6151958641.

Adding to 142740134 its reverse (431047241), we get a palindrome (573787375).

The spelling of 142740134 in words is "one hundred forty-two million, seven hundred forty thousand, one hundred thirty-four".