2143754959 has 4 divisors (see below), whose sum is σ = 2169583416. Its totient is φ = 2117926504.

The previous prime is 2143754953. The next prime is 2143754989. The reversal of 2143754959 is 9594573412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143754959 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143754953) 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, 12914104 + ... + 12914269.

It is an arithmetic number, because the mean of its divisors is an integer number (542395854).

Almost surely, 2^2143754959 is an apocalyptic number.

2143754959 is a deficient number, since it is larger than the sum of its proper divisors (25828457).

2143754959 is an equidigital number, since it uses as much as digits as its factorization.

2143754959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25828456.

The product of its digits is 1360800, while the sum is 49.

The square root of 2143754959 is about 46300.7014957657. The cubic root of 2143754959 is about 1289.4120187608.

The spelling of 2143754959 in words is "two billion, one hundred forty-three million, seven hundred fifty-four thousand, nine hundred fifty-nine".