1005332161 has 8 divisors (see below), whose sum is σ = 1058602880. Its totient is φ = 952097328.

The previous prime is 1005332149. The next prime is 1005332189. The reversal of 1005332161 is 1612335001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005332161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005336161) 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, 63715 + ... + 77911.

It is an arithmetic number, because the mean of its divisors is an integer number (132325360).

Almost surely, 2^1005332161 is an apocalyptic number.

It is an amenable number.

1005332161 is a deficient number, since it is larger than the sum of its proper divisors (53270719).

1005332161 is a wasteful number, since it uses less digits than its factorization.

1005332161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17943.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1005332161 is about 31706.9733812611. The cubic root of 1005332161 is about 1001.7742372206.

Adding to 1005332161 its reverse (1612335001), we get a palindrome (2617667162).

The spelling of 1005332161 in words is "one billion, five million, three hundred thirty-two thousand, one hundred sixty-one".