1266741 has 12 divisors (see below), whose sum is σ = 2091232. Its totient is φ = 723816.

The previous prime is 1266731. The next prime is 1266743. The reversal of 1266741 is 1476621.

It is not a de Polignac number, because 1266741 - 2⁶ = 1266677 is a prime.

It is a super-2 number, since 2×1266741² = 3209265522162, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

1266741 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9991 + ... + 10116.

2^1266741 is an apocalyptic number.

It is an amenable number.

1266741 is a deficient number, since it is larger than the sum of its proper divisors (824491).

1266741 is a wasteful number, since it uses less digits than its factorization.

1266741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120 (or 20117 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1266741 is about 1125.4958907077. The cubic root of 1266741 is about 108.2005020232.

The spelling of 1266741 in words is "one million, two hundred sixty-six thousand, seven hundred forty-one".