260149 has 4 divisors (see below), whose sum is σ = 261964. Its totient is φ = 258336.

The previous prime is 260137. The next prime is 260171. The reversal of 260149 is 941062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941062 = 2 ⋅470531.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 180625 = 282^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 260149 - 2¹¹ = 258101 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 (260179) by changing a digit.

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, 672 + ... + 985.

It is an arithmetic number, because the mean of its divisors is an integer number (65491).

2²⁶⁰¹⁴⁹ is an apocalyptic number.

It is an amenable number.

260149 is a deficient number, since it is larger than the sum of its proper divisors (1815).

260149 is a wasteful number, since it uses less digits than its factorization.

260149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 260149 is about 510.0480369534. The cubic root of 260149 is about 63.8372328801.

It can be divided in two parts, 2601 and 49, that multiplied together give a square (127449 = 357²).

The spelling of 260149 in words is "two hundred sixty thousand, one hundred forty-nine".