2143064697 has 16 divisors (see below), whose sum is σ = 2875371840. Its totient is φ = 1419751872.

The previous prime is 2143064647. The next prime is 2143064717. The reversal of 2143064697 is 7964603412.

It is not a de Polignac number, because 2143064697 - 2⁷ = 2143064569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143064617) 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, 662079 + ... + 665307.

It is an arithmetic number, because the mean of its divisors is an integer number (179710740).

Almost surely, 2^2143064697 is an apocalyptic number.

It is an amenable number.

2143064697 is a deficient number, since it is larger than the sum of its proper divisors (732307143).

2143064697 is a wasteful number, since it uses less digits than its factorization.

2143064697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 2143064697 is about 46293.2467753127. The cubic root of 2143064697 is about 1289.2736124473.

The spelling of 2143064697 in words is "two billion, one hundred forty-three million, sixty-four thousand, six hundred ninety-seven".