1501005 has 24 divisors (see below), whose sum is σ = 2642976. Its totient is φ = 726880.

The previous prime is 1500997. The next prime is 1501009. The reversal of 1501005 is 5001051.

It is not a de Polignac number, because 1501005 - 2³ = 1500997 is a prime.

1501005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501009) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1402 + ... + 2228.

It is an arithmetic number, because the mean of its divisors is an integer number (110124).

2^1501005 is an apocalyptic number.

1501005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1501005 is a deficient number, since it is larger than the sum of its proper divisors (1141971).

1501005 is a wasteful number, since it uses less digits than its factorization.

1501005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 1501005 is about 1225.1550922230. The cubic root of 1501005 is about 114.4969838326.

Adding to 1501005 its reverse (5001051), we get a palindrome (6502056).

The spelling of 1501005 in words is "one million, five hundred one thousand, five".