2143906875 has 60 divisors (see below), whose sum is σ = 4221617400. Its totient is φ = 1039440000.

The previous prime is 2143906823. The next prime is 2143906979. The reversal of 2143906875 is 5786093412.

2143906875 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2143906875 - 2⁷ = 2143906747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

2143906875 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2143906875.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 44551 + ... + 79199.

It is an arithmetic number, because the mean of its divisors is an integer number (70360290).

It is a 1-persistent number, because it is pandigital, but 2⋅2143906875 = 4287813750 is not.

Almost surely, 2^2143906875 is an apocalyptic number.

2143906875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2143906875 is the 24750-th nonagonal number.

2143906875 is a deficient number, since it is larger than the sum of its proper divisors (2077710525).

2143906875 is a wasteful number, since it uses less digits than its factorization.

2143906875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34686 (or 34668 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2143906875 is about 46302.3420034019. The cubic root of 2143906875 is about 1289.4424758626.

The spelling of 2143906875 in words is "two billion, one hundred forty-three million, nine hundred six thousand, eight hundred seventy-five".