260643135 has 16 divisors (see below), whose sum is σ = 424898784. Its totient is φ = 136386432.

The previous prime is 260643101. The next prime is 260643139. The reversal of 260643135 is 531346062.

It is not a de Polignac number, because 260643135 - 2¹³ = 260634943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260643139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163132 + ... + 164721.

It is an arithmetic number, because the mean of its divisors is an integer number (26556174).

Almost surely, 2^260643135 is an apocalyptic number.

260643135 is a deficient number, since it is larger than the sum of its proper divisors (164255649).

260643135 is a wasteful number, since it uses less digits than its factorization.

260643135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327914.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 260643135 is about 16144.4459489943. The cubic root of 260643135 is about 638.7762545010.

Adding to 260643135 its reverse (531346062), we get a palindrome (791989197).

The spelling of 260643135 in words is "two hundred sixty million, six hundred forty-three thousand, one hundred thirty-five".