1266654 has 32 divisors (see below), whose sum is σ = 2741760. Its totient is φ = 388800.

The previous prime is 1266631. The next prime is 1266677. The reversal of 1266654 is 4566621.

It is an interprime number because it is at equal distance from previous prime (1266631) and next prime (1266677).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4539 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2^1266654 is an apocalyptic number.

1266654 is an abundant number, since it is smaller than the sum of its proper divisors (1475106).

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

1266654 is a wasteful number, since it uses less digits than its factorization.

1266654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its digits is 8640, while the sum is 30.

The square root of 1266654 is about 1125.4572404139. The cubic root of 1266654 is about 108.1980248898.

It can be divided in two parts, 12666 and 54, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 1266654 in words is "one million, two hundred sixty-six thousand, six hundred fifty-four".