2068940143 has 4 divisors (see below), whose sum is σ = 2070044280. Its totient is φ = 2067836008.

The previous prime is 2068940131. The next prime is 2068940147. The reversal of 2068940143 is 3410498602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2068940143 - 2²¹ = 2066842991 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 (2068940147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549253 + ... + 553006.

It is an arithmetic number, because the mean of its divisors is an integer number (517511070).

Almost surely, 2^2068940143 is an apocalyptic number.

2068940143 is a deficient number, since it is larger than the sum of its proper divisors (1104137).

2068940143 is a wasteful number, since it uses less digits than its factorization.

2068940143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104136.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2068940143 is about 45485.6036895192. The cubic root of 2068940143 is about 1274.2343511294.

The spelling of 2068940143 in words is "two billion, sixty-eight million, nine hundred forty thousand, one hundred forty-three".