2143591475 has 12 divisors (see below), whose sum is σ = 2671552224. Its totient is φ = 1706164320.

The previous prime is 2143591427. The next prime is 2143591517. The reversal of 2143591475 is 5741953412.

It is a de Polignac number, because none of the positive numbers 2^k-2143591475 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212699 + ... + 222548.

It is an arithmetic number, because the mean of its divisors is an integer number (222629352).

Almost surely, 2^2143591475 is an apocalyptic number.

2143591475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2143591475 is a deficient number, since it is larger than the sum of its proper divisors (527960749).

2143591475 is a wasteful number, since it uses less digits than its factorization.

2143591475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435454 (or 435449 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 2143591475 is about 46298.9360028932. The cubic root of 2143591475 is about 1289.3792408240.

The spelling of 2143591475 in words is "two billion, one hundred forty-three million, five hundred ninety-one thousand, four hundred seventy-five".