2174981243 has 16 divisors (see below), whose sum is σ = 2348320800. Its totient is φ = 2007659520.

The previous prime is 2174981213. The next prime is 2174981273. The reversal of 2174981243 is 3421894712.

It is an interprime number because it is at equal distance from previous prime (2174981213) and next prime (2174981273).

It is a cyclic number.

It is not a de Polignac number, because 2174981243 - 2¹⁰ = 2174980219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2174981243.

It is not an unprimeable number, because it can be changed into a prime (2174981203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878255 + ... + 880727.

It is an arithmetic number, because the mean of its divisors is an integer number (146770050).

Almost surely, 2^2174981243 is an apocalyptic number.

2174981243 is a deficient number, since it is larger than the sum of its proper divisors (173339557).

2174981243 is a wasteful number, since it uses less digits than its factorization.

2174981243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662.

The product of its digits is 96768, while the sum is 41.

The square root of 2174981243 is about 46636.6941688624. The cubic root of 2174981243 is about 1295.6424599479.

The spelling of 2174981243 in words is "two billion, one hundred seventy-four million, nine hundred eighty-one thousand, two hundred forty-three".