1006045 has 4 divisors (see below), whose sum is σ = 1207260. Its totient is φ = 804832.

The previous prime is 1006037. The next prime is 1006063. The reversal of 1006045 is 5406001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5406001 = 547 ⋅9883.

It can be written as a sum of positive squares in 2 ways, for example, as 356409 + 649636 = 597^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006045 - 2³ = 1006037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100600 + ... + 100609.

It is an arithmetic number, because the mean of its divisors is an integer number (301815).

2^1006045 is an apocalyptic number.

It is an amenable number.

1006045 is a deficient number, since it is larger than the sum of its proper divisors (201215).

1006045 is an equidigital number, since it uses as much as digits as its factorization.

1006045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201214.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1006045 is about 1003.0179460010. The cubic root of 1006045 is about 100.2010953356.

The spelling of 1006045 in words is "one million, six thousand, forty-five".