2164564201 has 4 divisors (see below), whose sum is σ = 2258675712. Its totient is φ = 2070452692.

The previous prime is 2164564177. The next prime is 2164564217. The reversal of 2164564201 is 1024654612.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2164564201 - 2⁹ = 2164563689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164564231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47055721 + ... + 47055766.

It is an arithmetic number, because the mean of its divisors is an integer number (564668928).

Almost surely, 2^2164564201 is an apocalyptic number.

It is an amenable number.

2164564201 is a deficient number, since it is larger than the sum of its proper divisors (94111511).

2164564201 is an equidigital number, since it uses as much as digits as its factorization.

2164564201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94111510.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2164564201 is about 46524.8772271352. The cubic root of 2164564201 is about 1293.5706617043.

The spelling of 2164564201 in words is "two billion, one hundred sixty-four million, five hundred sixty-four thousand, two hundred one".