1040045 has 4 divisors (see below), whose sum is σ = 1248060. Its totient is φ = 832032.

The previous prime is 1040029. The next prime is 1040051. The reversal of 1040045 is 5400401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5400401 = 67 ⋅80603.

It can be written as a sum of positive squares in 2 ways, for example, as 315844 + 724201 = 562^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040045 - 2⁴ = 1040029 is a prime.

It is an Ulam number.

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, 104000 + ... + 104009.

It is an arithmetic number, because the mean of its divisors is an integer number (312015).

2^1040045 is an apocalyptic number.

It is an amenable number.

1040045 is a deficient number, since it is larger than the sum of its proper divisors (208015).

1040045 is an equidigital number, since it uses as much as digits as its factorization.

1040045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208014.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1040045 is about 1019.8259655451. The cubic root of 1040045 is about 101.3174016485.

Adding to 1040045 its reverse (5400401), we get a palindrome (6440446).

The spelling of 1040045 in words is "one million, forty thousand, forty-five".