261260 has 12 divisors (see below), whose sum is σ = 548688. Its totient is φ = 104496.

The previous prime is 261251. The next prime is 261271. The reversal of 261260 is 62162.

261260 is nontrivially palindromic in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 261260.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6512 + ... + 6551.

It is an arithmetic number, because the mean of its divisors is an integer number (45724).

2²⁶¹²⁶⁰ is an apocalyptic number.

261260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261260 is an abundant number, since it is smaller than the sum of its proper divisors (287428).

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

261260 is a wasteful number, since it uses less digits than its factorization.

261260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13072 (or 13070 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 261260 is about 511.1359897327. The cubic root of 261260 is about 63.9279788787.

The spelling of 261260 in words is "two hundred sixty-one thousand, two hundred sixty".