260851 has 4 divisors (see below), whose sum is σ = 274600. Its totient is φ = 247104.

The previous prime is 260849. The next prime is 260857. The reversal of 260851 is 158062.

260851 = 206² + 207² + ... + 211².

It is a happy number.

260851 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158062 = 2 ⋅79031.

It is a cyclic number.

It is not a de Polignac number, because 260851 - 2¹ = 260849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6846 + ... + 6883.

It is an arithmetic number, because the mean of its divisors is an integer number (68650).

2²⁶⁰⁸⁵¹ is an apocalyptic number.

260851 is a deficient number, since it is larger than the sum of its proper divisors (13749).

260851 is a wasteful number, since it uses less digits than its factorization.

260851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13748.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 260851 is about 510.7357438050. The cubic root of 260851 is about 63.8946019116.

It can be divided in two parts, 260 and 851, that added together give a palindrome (1111).

The spelling of 260851 in words is "two hundred sixty thousand, eight hundred fifty-one".