81260 has 24 divisors (see below), whose sum is σ = 181440. Its totient is φ = 30464.

The previous prime is 81239. The next prime is 81281. The reversal of 81260 is 6218.

81260 = T₂₉ + T₃₀ + ... + T₇₉.

It is an interprime number because it is at equal distance from previous prime (81239) and next prime (81281).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 81260.

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, 221 + ... + 459.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2⁸¹²⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 81260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720).

81260 is an abundant number, since it is smaller than the sum of its proper divisors (100180).

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

81260 is a wasteful number, since it uses less digits than its factorization.

81260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 81260 is about 285.0613968955. The cubic root of 81260 is about 43.3137320949.

Adding to 81260 its reverse (6218), we get a palindrome (87478).

The spelling of 81260 in words is "eighty-one thousand, two hundred sixty".