1066541 has 4 divisors (see below), whose sum is σ = 1218912. Its totient is φ = 914172.

The previous prime is 1066531. The next prime is 1066553. The reversal of 1066541 is 1456601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1456601 = 283 ⋅5147.

It is a de Polignac number, because none of the positive numbers 2^k-1066541 is a prime.

It is a super-2 number, since 2×1066541² = 2275019409362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76175 + ... + 76188.

It is an arithmetic number, because the mean of its divisors is an integer number (304728).

2^1066541 is an apocalyptic number.

It is an amenable number.

1066541 is a deficient number, since it is larger than the sum of its proper divisors (152371).

1066541 is an equidigital number, since it uses as much as digits as its factorization.

1066541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152370.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1066541 is about 1032.7347190833. The cubic root of 1066541 is about 102.1705783469.

The spelling of 1066541 in words is "one million, sixty-six thousand, five hundred forty-one".