1004317561 has 8 divisors (see below), whose sum is σ = 1138497920. Its totient is φ = 878269392.

The previous prime is 1004317553. The next prime is 1004317597. The reversal of 1004317561 is 1657134001.

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

It is not a de Polignac number, because 1004317561 - 2³ = 1004317553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004314561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032785 + ... + 2033278.

It is an arithmetic number, because the mean of its divisors is an integer number (142312240).

Almost surely, 2^1004317561 is an apocalyptic number.

It is an amenable number.

1004317561 is a deficient number, since it is larger than the sum of its proper divisors (134180359).

1004317561 is a wasteful number, since it uses less digits than its factorization.

1004317561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066095.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1004317561 is about 31690.9697074735. The cubic root of 1004317561 is about 1001.4371206947.

The spelling of 1004317561 in words is "one billion, four million, three hundred seventeen thousand, five hundred sixty-one".