2143051651 has 6 divisors (see below), whose sum is σ = 2320582740. Its totient is φ = 1978201368.

The previous prime is 2143051643. The next prime is 2143051679. The reversal of 2143051651 is 1561503412.

It is not a de Polignac number, because 2143051651 - 2³ = 2143051643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143052651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6340221 + ... + 6340558.

It is an arithmetic number, because the mean of its divisors is an integer number (386763790).

Almost surely, 2^2143051651 is an apocalyptic number.

2143051651 is a deficient number, since it is larger than the sum of its proper divisors (177531089).

2143051651 is a wasteful number, since it uses less digits than its factorization.

2143051651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680805 (or 12680792 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2143051651 is about 46293.1058690168. The cubic root of 2143051651 is about 1289.2709962722.

The spelling of 2143051651 in words is "two billion, one hundred forty-three million, fifty-one thousand, six hundred fifty-one".