264138105 has 64 divisors (see below), whose sum is σ = 534491136. Its totient is φ = 108192000.

The previous prime is 264138101. The next prime is 264138131. The reversal of 264138105 is 501831462.

It is not a de Polignac number, because 264138105 - 2² = 264138101 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (264138101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80395 + ... + 83615.

It is an arithmetic number, because the mean of its divisors is an integer number (8351424).

Almost surely, 2^264138105 is an apocalyptic number.

It is an amenable number.

264138105 is an abundant number, since it is smaller than the sum of its proper divisors (270353031).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264138105 is a wasteful number, since it uses less digits than its factorization.

264138105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 264138105 is about 16252.3261412021. The cubic root of 264138105 is about 641.6187092585.

Adding to 264138105 its reverse (501831462), we get a palindrome (765969567).

The spelling of 264138105 in words is "two hundred sixty-four million, one hundred thirty-eight thousand, one hundred five".