142935847 has 16 divisors (see below), whose sum is σ = 156887712. Its totient is φ = 129669120.

The previous prime is 142935811. The next prime is 142935889. The reversal of 142935847 is 748539241.

It is a cyclic number.

It is not a de Polignac number, because 142935847 - 2⁷ = 142935719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142930847) 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 15 ways as a sum of consecutive naturals, for example, 70072 + ... + 72082.

It is an arithmetic number, because the mean of its divisors is an integer number (9805482).

Almost surely, 2^142935847 is an apocalyptic number.

142935847 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142935847 is a deficient number, since it is larger than the sum of its proper divisors (13951865).

142935847 is a wasteful number, since it uses less digits than its factorization.

142935847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its digits is 241920, while the sum is 43.

The square root of 142935847 is about 11955.5780705075. The cubic root of 142935847 is about 522.8539417900.

The spelling of 142935847 in words is "one hundred forty-two million, nine hundred thirty-five thousand, eight hundred forty-seven".