2131669843 has 8 divisors (see below), whose sum is σ = 2151780048. Its totient is φ = 2111649504.

The previous prime is 2131669829. The next prime is 2131669847. The reversal of 2131669843 is 3489661312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131669843 - 2⁵ = 2131669811 is a prime.

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 2131669843.

It is not an unprimeable number, because it can be changed into a prime (2131669847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25680 + ... + 70162.

It is an arithmetic number, because the mean of its divisors is an integer number (268972506).

Almost surely, 2^2131669843 is an apocalyptic number.

2131669843 is a deficient number, since it is larger than the sum of its proper divisors (20110205).

2131669843 is a wasteful number, since it uses less digits than its factorization.

2131669843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44933.

The product of its digits is 186624, while the sum is 43.

The square root of 2131669843 is about 46170.0102122579. The cubic root of 2131669843 is about 1286.9844919965.

The spelling of 2131669843 in words is "two billion, one hundred thirty-one million, six hundred sixty-nine thousand, eight hundred forty-three".