13481505 has 32 divisors (see below), whose sum is σ = 24624000. Its totient is φ = 6993216.

The previous prime is 13481477. The next prime is 13481569. The reversal of 13481505 is 50518431.

13481505 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13481505 - 2¹⁴ = 13465121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3646 + ... + 6344.

It is an arithmetic number, because the mean of its divisors is an integer number (769500).

Almost surely, 2^13481505 is an apocalyptic number.

13481505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13481505 is a deficient number, since it is larger than the sum of its proper divisors (11142495).

13481505 is a wasteful number, since it uses less digits than its factorization.

13481505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 13481505 is about 3671.7169008517. The cubic root of 13481505 is about 238.0013711288.

Adding to 13481505 its reverse (50518431), we get a palindrome (63999936).

The spelling of 13481505 in words is "thirteen million, four hundred eighty-one thousand, five hundred five".