1261266 has 16 divisors (see below), whose sum is σ = 2604288. Its totient is φ = 406800.

The previous prime is 1261261. The next prime is 1261279. The reversal of 1261266 is 6621621.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3205 + ... + 3576.

It is an arithmetic number, because the mean of its divisors is an integer number (162768).

2^1261266 is an apocalyptic number.

1261266 is an abundant number, since it is smaller than the sum of its proper divisors (1343022).

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

1261266 is a wasteful number, since it uses less digits than its factorization.

1261266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6817.

The product of its digits is 864, while the sum is 24.

The square root of 1261266 is about 1123.0609956721. The cubic root of 1261266 is about 108.0443919017.

Adding to 1261266 its reverse (6621621), we get a palindrome (7882887).

The spelling of 1261266 in words is "one million, two hundred sixty-one thousand, two hundred sixty-six".