1004145 has 8 divisors (see below), whose sum is σ = 1606656. Its totient is φ = 535536.

The previous prime is 1004141. The next prime is 1004161. The reversal of 1004145 is 5414001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1004145 - 2² = 1004141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 66943 = 1004145 / (1 + 0 + 0 + 4 + 1 + 4 + 5).

It is not an unprimeable number, because it can be changed into a prime (1004141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33457 + ... + 33486.

It is an arithmetic number, because the mean of its divisors is an integer number (200832).

2^1004145 is an apocalyptic number.

1004145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004145 is a deficient number, since it is larger than the sum of its proper divisors (602511).

1004145 is an equidigital number, since it uses as much as digits as its factorization.

1004145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66951.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1004145 is about 1002.0703568113. The cubic root of 1004145 is about 100.1379762048.

Adding to 1004145 its reverse (5414001), we get a palindrome (6418146).

The spelling of 1004145 in words is "one million, four thousand, one hundred forty-five".