1012045 has 4 divisors (see below), whose sum is σ = 1214460. Its totient is φ = 809632.

The previous prime is 1012043. The next prime is 1012049. The reversal of 1012045 is 5402101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5402101 = 1787 ⋅3023.

It can be written as a sum of positive squares in 2 ways, for example, as 367236 + 644809 = 606^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012045 - 2¹ = 1012043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012043) 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, 101200 + ... + 101209.

It is an arithmetic number, because the mean of its divisors is an integer number (303615).

2^1012045 is an apocalyptic number.

It is an amenable number.

1012045 is a deficient number, since it is larger than the sum of its proper divisors (202415).

1012045 is an equidigital number, since it uses as much as digits as its factorization.

1012045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202414.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1012045 is about 1006.0044731511. The cubic root of 1012045 is about 100.3998986788.

Adding to 1012045 its reverse (5402101), we get a palindrome (6414146).

The spelling of 1012045 in words is "one million, twelve thousand, forty-five".