1261826 has 8 divisors (see below), whose sum is σ = 1975104. Its totient is φ = 603460.

The previous prime is 1261823. The next prime is 1261829. The reversal of 1261826 is 6281621.

It is an interprime number because it is at equal distance from previous prime (1261823) and next prime (1261829).

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

It is a junction number, because it is equal to n+sod(n) for n = 1261795 and 1261804.

It is not an unprimeable number, because it can be changed into a prime (1261823) 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, 13670 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (246888).

2^1261826 is an apocalyptic number.

1261826 is a deficient number, since it is larger than the sum of its proper divisors (713278).

1261826 is a wasteful number, since it uses less digits than its factorization.

1261826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27456.

The product of its digits is 1152, while the sum is 26.

The square root of 1261826 is about 1123.3102866083. The cubic root of 1261826 is about 108.0603800456.

The spelling of 1261826 in words is "one million, two hundred sixty-one thousand, eight hundred twenty-six".