260136530 has 16 divisors (see below), whose sum is σ = 470626200. Its totient is φ = 103525632.

The previous prime is 260136523. The next prime is 260136553. The reversal of 260136530 is 35631062.

260136530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 258212761 + 1923769 = 16069^2 + 1387^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 260136530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64055 + ... + 67994.

Almost surely, 2^260136530 is an apocalyptic number.

260136530 is a deficient number, since it is larger than the sum of its proper divisors (210489670).

260136530 is a wasteful number, since it uses less digits than its factorization.

260136530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132253.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 260136530 is about 16128.7485565372. The cubic root of 260136530 is about 638.3621287100.

Adding to 260136530 its reverse (35631062), we get a palindrome (295767592).

The spelling of 260136530 in words is "two hundred sixty million, one hundred thirty-six thousand, five hundred thirty".