13001505 has 16 divisors (see below), whose sum is σ = 22693824. Its totient is φ = 6303680.

The previous prime is 13001501. The next prime is 13001507. The reversal of 13001505 is 50510031.

13001505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13001505 - 2² = 13001501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13001501) 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, 39234 + ... + 39563.

It is an arithmetic number, because the mean of its divisors is an integer number (1418364).

Almost surely, 2^13001505 is an apocalyptic number.

13001505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13001505 is a deficient number, since it is larger than the sum of its proper divisors (9692319).

13001505 is a wasteful number, since it uses less digits than its factorization.

13001505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78816.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 13001505 is about 3605.7599753727. The cubic root of 13001505 is about 235.1425421622.

Adding to 13001505 its reverse (50510031), we get a palindrome (63511536).

The spelling of 13001505 in words is "thirteen million, one thousand, five hundred five".