1004494129 has 4 divisors (see below), whose sum is σ = 1011146560. Its totient is φ = 997841700.

The previous prime is 1004494097. The next prime is 1004494133. The reversal of 1004494129 is 9214944001.

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: 9214944001 = 113 ⋅81548177.

It is a cyclic number.

It is not a de Polignac number, because 1004494129 - 2⁵ = 1004494097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004494094 and 1004494103.

It is not an unprimeable number, because it can be changed into a prime (1004494159) 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, 3325989 + ... + 3326290.

It is an arithmetic number, because the mean of its divisors is an integer number (252786640).

Almost surely, 2^1004494129 is an apocalyptic number.

It is an amenable number.

1004494129 is a deficient number, since it is larger than the sum of its proper divisors (6652431).

1004494129 is an equidigital number, since it uses as much as digits as its factorization.

1004494129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652430.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1004494129 is about 31693.7553628471. The cubic root of 1004494129 is about 1001.4958044535.

The spelling of 1004494129 in words is "one billion, four million, four hundred ninety-four thousand, one hundred twenty-nine".