1266027 has 24 divisors (see below), whose sum is σ = 2048256. Its totient is φ = 681264.

The previous prime is 1266019. The next prime is 1266043. The reversal of 1266027 is 7206621.

It is a happy number.

It is not a de Polignac number, because 1266027 - 2³ = 1266019 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1265988 and 1266006.

It is not an unprimeable number, because it can be changed into a prime (1266047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7498 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (85344).

2^1266027 is an apocalyptic number.

1266027 is a deficient number, since it is larger than the sum of its proper divisors (782229).

1266027 is a wasteful number, since it uses less digits than its factorization.

1266027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1266027 is about 1125.1786524815. The cubic root of 1266027 is about 108.1801690906.

The spelling of 1266027 in words is "one million, two hundred sixty-six thousand, twenty-seven".