34020687143 has 4 divisors (see below), whose sum is σ = 34042234440. Its totient is φ = 33999139848.

The previous prime is 34020687133. The next prime is 34020687149. The reversal of 34020687143 is 34178602043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34178602043 = 68713 ⋅497411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34020687143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34020687097 and 34020687106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34020687149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10771280 + ... + 10774437.

It is an arithmetic number, because the mean of its divisors is an integer number (8510558610).

Almost surely, 2^34020687143 is an apocalyptic number.

34020687143 is a deficient number, since it is larger than the sum of its proper divisors (21547297).

34020687143 is a wasteful number, since it uses less digits than its factorization.

34020687143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21547296.

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

The spelling of 34020687143 in words is "thirty-four billion, twenty million, six hundred eighty-seven thousand, one hundred forty-three".