261246 has 8 divisors (see below), whose sum is σ = 522504. Its totient is φ = 87080.

The previous prime is 261241. The next prime is 261251. The reversal of 261246 is 642162.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (261241) and next prime (261251).

It is a sphenic number, since it is the product of 3 distinct primes.

261246 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261241) by changing a digit.

261246 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21765 + ... + 21776.

It is an arithmetic number, because the mean of its divisors is an integer number (65313).

2²⁶¹²⁴⁶ is an apocalyptic number.

261246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

261246 is a wasteful number, since it uses less digits than its factorization.

261246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43546.

The product of its digits is 576, while the sum is 21.

The square root of 261246 is about 511.1222945636. The cubic root of 261246 is about 63.9268369668.

The spelling of 261246 in words is "two hundred sixty-one thousand, two hundred forty-six".