1005450085 has 8 divisors (see below), whose sum is σ = 1232211456. Its totient is φ = 787245840.

The previous prime is 1005450073. The next prime is 1005450101. The reversal of 1005450085 is 5800545001.

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

It is not a de Polignac number, because 1005450085 - 2¹⁹ = 1004925797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139021 + ... + 2139490.

It is an arithmetic number, because the mean of its divisors is an integer number (154026432).

Almost surely, 2^1005450085 is an apocalyptic number.

It is an amenable number.

1005450085 is a deficient number, since it is larger than the sum of its proper divisors (226761371).

1005450085 is an equidigital number, since it uses as much as digits as its factorization.

1005450085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278563.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1005450085 is about 31708.8329176588. The cubic root of 1005450085 is about 1001.8134045761.

Adding to 1005450085 its reverse (5800545001), we get a palindrome (6805995086).

The spelling of 1005450085 in words is "one billion, five million, four hundred fifty thousand, eighty-five".