10871261 has 4 divisors (see below), whose sum is σ = 10993500. Its totient is φ = 10749024.

The previous prime is 10871243. The next prime is 10871291. The reversal of 10871261 is 16217801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3308761 + 7562500 = 1819^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 10871261 - 2⁶ = 10871197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10871261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10871221) 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, 60986 + ... + 61163.

It is an arithmetic number, because the mean of its divisors is an integer number (2748375).

Almost surely, 2^10871261 is an apocalyptic number.

It is an amenable number.

10871261 is a deficient number, since it is larger than the sum of its proper divisors (122239).

10871261 is an equidigital number, since it uses as much as digits as its factorization.

10871261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122238.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 10871261 is about 3297.1595351150. The cubic root of 10871261 is about 221.5269870829.

The spelling of 10871261 in words is "ten million, eight hundred seventy-one thousand, two hundred sixty-one".