1066257 has 32 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 633600.

The previous prime is 1066253. The next prime is 1066267. The reversal of 1066257 is 7526601.

It is not a de Polignac number, because 1066257 - 2² = 1066253 is a prime.

It is a super-2 number, since 2×1066257² = 2273807980098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

1066257 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066257.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10507 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2^1066257 is an apocalyptic number.

1066257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1066257 is a deficient number, since it is larger than the sum of its proper divisors (696303).

1066257 is a wasteful number, since it uses less digits than its factorization.

1066257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1066257 is about 1032.5972109201. The cubic root of 1066257 is about 102.1615088346.

The spelling of 1066257 in words is "one million, sixty-six thousand, two hundred fifty-seven".