264156109 has 12 divisors (see below), whose sum is σ = 307633788. Its totient is φ = 226161600.

The previous prime is 264156103. The next prime is 264156119. The reversal of 264156109 is 901651462.

It can be written as a sum of positive squares in 2 ways, for example, as 100060009 + 164096100 = 10003^2 + 12810^2 .

It is not a de Polignac number, because 264156109 - 2⁵ = 264156077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264156103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49449 + ... + 54529.

It is an arithmetic number, because the mean of its divisors is an integer number (25636149).

Almost surely, 2^264156109 is an apocalyptic number.

It is an amenable number.

264156109 is a deficient number, since it is larger than the sum of its proper divisors (43477679).

264156109 is a wasteful number, since it uses less digits than its factorization.

264156109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 264156109 is about 16252.8800217069. The cubic root of 264156109 is about 641.6332867852.

The spelling of 264156109 in words is "two hundred sixty-four million, one hundred fifty-six thousand, one hundred nine".