1005001061 has 16 divisors (see below), whose sum is σ = 1069286400. Its totient is φ = 942883200.

The previous prime is 1005001051. The next prime is 1005001069. The reversal of 1005001061 is 1601005001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005001061 is a prime.

It is a super-2 number, since 2×1005001061² = 2020054265222251442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005001069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320660 + ... + 323778.

It is an arithmetic number, because the mean of its divisors is an integer number (66830400).

Almost surely, 2^1005001061 is an apocalyptic number.

It is an amenable number.

1005001061 is a deficient number, since it is larger than the sum of its proper divisors (64285339).

1005001061 is a wasteful number, since it uses less digits than its factorization.

1005001061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1005001061 is about 31701.7517023902. The cubic root of 1005001061 is about 1001.6642490719.

Adding to 1005001061 its reverse (1601005001), we get a palindrome (2606006062).

The spelling of 1005001061 in words is "one billion, five million, one thousand, sixty-one".