142947434 has 8 divisors (see below), whose sum is σ = 245052768. Its totient is φ = 61263180.

The previous prime is 142947433. The next prime is 142947449. The reversal of 142947434 is 434749241.

It is a happy number.

142947434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (142947433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105252 + ... + 5105279.

It is an arithmetic number, because the mean of its divisors is an integer number (30631596).

Almost surely, 2^142947434 is an apocalyptic number.

142947434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142947434 is a deficient number, since it is larger than the sum of its proper divisors (102105334).

142947434 is a wasteful number, since it uses less digits than its factorization.

142947434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210540.

The product of its digits is 96768, while the sum is 38.

The square root of 142947434 is about 11956.0626462059. The cubic root of 142947434 is about 522.8680696780.

The spelling of 142947434 in words is "one hundred forty-two million, nine hundred forty-seven thousand, four hundred thirty-four".