1500085 has 4 divisors (see below), whose sum is σ = 1800108. Its totient is φ = 1200064.

The previous prime is 1500073. The next prime is 1500101. The reversal of 1500085 is 5800051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5800051 = 157 ⋅36943.

It can be written as a sum of positive squares in 2 ways, for example, as 463761 + 1036324 = 681^2 + 1018^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500085 - 2¹⁵ = 1467317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150004 + ... + 150013.

It is an arithmetic number, because the mean of its divisors is an integer number (450027).

2^1500085 is an apocalyptic number.

It is an amenable number.

1500085 is a deficient number, since it is larger than the sum of its proper divisors (300023).

1500085 is an equidigital number, since it uses as much as digits as its factorization.

1500085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300022.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1500085 is about 1224.7795720047. The cubic root of 1500085 is about 114.4735864525.

The spelling of 1500085 in words is "one million, five hundred thousand, eighty-five".