1261886 has 8 divisors (see below), whose sum is σ = 1953984. Its totient is φ = 610560.

The previous prime is 1261861. The next prime is 1261889. The reversal of 1261886 is 6881621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261889) 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, 10115 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (244248).

2^1261886 is an apocalyptic number.

1261886 is a deficient number, since it is larger than the sum of its proper divisors (692098).

1261886 is a wasteful number, since it uses less digits than its factorization.

1261886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386.

The product of its digits is 4608, while the sum is 32.

The square root of 1261886 is about 1123.3369930702. The cubic root of 1261886 is about 108.0620927805.

The spelling of 1261886 in words is "one million, two hundred sixty-one thousand, eight hundred eighty-six".