1066149 has 16 divisors (see below), whose sum is σ = 1805440. Its totient is φ = 609120.

The previous prime is 1066141. The next prime is 1066157. The reversal of 1066149 is 9416601.

It is an interprime number because it is at equal distance from previous prime (1066141) and next prime (1066157).

It is not a de Polignac number, because 1066149 - 2³ = 1066141 is a prime.

It is a super-2 number, since 2×1066149² = 2273347380402, which contains 22 as substring.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2632 + ... + 3009.

It is an arithmetic number, because the mean of its divisors is an integer number (112840).

2^1066149 is an apocalyptic number.

It is an amenable number.

1066149 is a deficient number, since it is larger than the sum of its proper divisors (739291).

1066149 is an equidigital number, since it uses as much as digits as its factorization.

1066149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657 (or 5651 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1066149 is about 1032.5449142773. The cubic root of 1066149 is about 102.1580594425.

The spelling of 1066149 in words is "one million, sixty-six thousand, one hundred forty-nine".