1256066 has 16 divisors (see below), whose sum is σ = 2198400. Its totient is φ = 538020.

The previous prime is 1256063. The next prime is 1256107. The reversal of 1256066 is 6606521.

It is not an unprimeable number, because it can be changed into a prime (1256063) 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, 230 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (137400).

2^1256066 is an apocalyptic number.

1256066 is a deficient number, since it is larger than the sum of its proper divisors (942334).

1256066 is an equidigital number, since it uses as much as digits as its factorization.

1256066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1256066 is about 1120.7435032156. The cubic root of 1256066 is about 107.8957040689.

The spelling of 1256066 in words is "one million, two hundred fifty-six thousand, sixty-six".