1500005 has 16 divisors (see below), whose sum is σ = 1983744. Its totient is φ = 1081920.

The previous prime is 1499977. The next prime is 1500007. The reversal of 1500005 is 5000051.

It is not a de Polignac number, because 1500005 - 2¹⁴ = 1483621 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 (1500007) 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, 2810 + ... + 3300.

It is an arithmetic number, because the mean of its divisors is an integer number (123984).

2^1500005 is an apocalyptic number.

It is an amenable number.

1500005 is a deficient number, since it is larger than the sum of its proper divisors (483739).

1500005 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (1500004) it forms an eRAP, since the sums of their prime factors are consecutive (555 and 556).

1500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 1500005 is about 1224.7469126313. The cubic root of 1500005 is about 114.4715514457.

Adding to 1500005 its reverse (5000051), we get a palindrome (6500056).

The spelling of 1500005 in words is "one million, five hundred thousand, five".