142974134 has 16 divisors (see below), whose sum is σ = 220688496. Its totient is φ = 69427200.

The previous prime is 142974071. The next prime is 142974163. The reversal of 142974134 is 431479241.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142974094 and 142974103.

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 7 ways as a sum of consecutive naturals, for example, 14774 + ... + 22454.

It is an arithmetic number, because the mean of its divisors is an integer number (13793031).

Almost surely, 2^142974134 is an apocalyptic number.

142974134 is a deficient number, since it is larger than the sum of its proper divisors (77714362).

142974134 is a wasteful number, since it uses less digits than its factorization.

142974134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7951.

The product of its digits is 24192, while the sum is 35.

The square root of 142974134 is about 11957.1791823992. The cubic root of 142974134 is about 522.9006217567.

The spelling of 142974134 in words is "one hundred forty-two million, nine hundred seventy-four thousand, one hundred thirty-four".