13505151 has 16 divisors (see below), whose sum is σ = 19721088. Its totient is φ = 8152800.

The previous prime is 13505147. The next prime is 13505153. The reversal of 13505151 is 15150531.

13505151 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 13505151 - 2² = 13505147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505153) 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, 9816 + ... + 11106.

It is an arithmetic number, because the mean of its divisors is an integer number (1232568).

Almost surely, 2^13505151 is an apocalyptic number.

13505151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13505151 is a deficient number, since it is larger than the sum of its proper divisors (6215937).

13505151 is a wasteful number, since it uses less digits than its factorization.

13505151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 13505151 is about 3674.9355096382. The cubic root of 13505151 is about 238.1404380289.

Adding to 13505151 its reverse (15150531), we get a palindrome (28655682).

The spelling of 13505151 in words is "thirteen million, five hundred five thousand, one hundred fifty-one".