1016005 has 8 divisors (see below), whose sum is σ = 1291032. Its totient is φ = 764928.

The previous prime is 1015991. The next prime is 1016009. The reversal of 1016005 is 5006101.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 588289 = 654^2 + 767^2 .

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 1016005 - 2⁷ = 1015877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016009) 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, 5892 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (161379).

2^1016005 is an apocalyptic number.

It is an amenable number.

1016005 is a deficient number, since it is larger than the sum of its proper divisors (275027).

1016005 is a wasteful number, since it uses less digits than its factorization.

1016005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11975.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1016005 is about 1007.9707337021. The cubic root of 1016005 is about 100.5306788183.

The spelling of 1016005 in words is "one million, sixteen thousand, five".