264064121 has 4 divisors (see below), whose sum is σ = 264812532. Its totient is φ = 263315712.

The previous prime is 264064093. The next prime is 264064211. The reversal of 264064121 is 121460462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164762896 + 99301225 = 12836^2 + 9965^2 .

It is a cyclic number.

It is not a de Polignac number, because 264064121 - 2¹⁸ = 263801977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (264064721) 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, 373676 + ... + 374381.

It is an arithmetic number, because the mean of its divisors is an integer number (66203133).

Almost surely, 2^264064121 is an apocalyptic number.

It is an amenable number.

264064121 is a deficient number, since it is larger than the sum of its proper divisors (748411).

264064121 is an equidigital number, since it uses as much as digits as its factorization.

264064121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748410.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 264064121 is about 16250.0498768465. The cubic root of 264064121 is about 641.5587987415.

The spelling of 264064121 in words is "two hundred sixty-four million, sixty-four thousand, one hundred twenty-one".