1004403161 has 8 divisors (see below), whose sum is σ = 1014811200. Its totient is φ = 994007952.

The previous prime is 1004403157. The next prime is 1004403167. The reversal of 1004403161 is 1613044001.

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

It is a cyclic number.

It is not a de Polignac number, because 1004403161 - 2² = 1004403157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1004403167) 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, 276191 + ... + 279803.

It is an arithmetic number, because the mean of its divisors is an integer number (126851400).

Almost surely, 2^1004403161 is an apocalyptic number.

It is an amenable number.

1004403161 is a deficient number, since it is larger than the sum of its proper divisors (10408039).

1004403161 is a wasteful number, since it uses less digits than its factorization.

1004403161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1004403161 is about 31692.3202211514. The cubic root of 1004403161 is about 1001.4655713846.

Adding to 1004403161 its reverse (1613044001), we get a palindrome (2617447162).

The spelling of 1004403161 in words is "one billion, four million, four hundred three thousand, one hundred sixty-one".