13288251 has 4 divisors (see below), whose sum is σ = 17717672. Its totient is φ = 8858832.

The previous prime is 13288211. The next prime is 13288259. The reversal of 13288251 is 15288231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13288251 - 2¹⁰ = 13287227 is a prime.

It is a super-2 number, since 2×13288251² = 353155229278002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13288259) 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 3 ways as a sum of consecutive naturals, for example, 2214706 + ... + 2214711.

It is an arithmetic number, because the mean of its divisors is an integer number (4429418).

Almost surely, 2^13288251 is an apocalyptic number.

13288251 is a deficient number, since it is larger than the sum of its proper divisors (4429421).

13288251 is an equidigital number, since it uses as much as digits as its factorization.

13288251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429420.

The product of its digits is 3840, while the sum is 30.

The square root of 13288251 is about 3645.3053370054. The cubic root of 13288251 is about 236.8586634375.

The spelling of 13288251 in words is "thirteen million, two hundred eighty-eight thousand, two hundred fifty-one".