267261 has 4 divisors (see below), whose sum is σ = 356352. Its totient is φ = 178172.

The previous prime is 267259. The next prime is 267271. The reversal of 267261 is 162762.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 267261 - 2¹ = 267259 is a prime.

It is a D-number.

267261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (267271) 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, 44541 + ... + 44546.

It is an arithmetic number, because the mean of its divisors is an integer number (89088).

2²⁶⁷²⁶¹ is an apocalyptic number.

It is an amenable number.

267261 is a deficient number, since it is larger than the sum of its proper divisors (89091).

267261 is an equidigital number, since it uses as much as digits as its factorization.

267261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89090.

The product of its digits is 1008, while the sum is 24.

The square root of 267261 is about 516.9729199871. The cubic root of 267261 is about 64.4137420361.

It can be divided in two parts, 267 and 261, that added together give a triangular number (528 = T₃₂).

The spelling of 267261 in words is "two hundred sixty-seven thousand, two hundred sixty-one".