13281288 has 32 divisors (see below), whose sum is σ = 33293760. Its totient is φ = 4415040.

The previous prime is 13281283. The next prime is 13281293. The reversal of 13281288 is 88218231.

It is an interprime number because it is at equal distance from previous prime (13281283) and next prime (13281293).

It is a super-2 number, since 2×13281288² = 352785221877888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13281283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14706 + ... + 15582.

It is an arithmetic number, because the mean of its divisors is an integer number (1040430).

Almost surely, 2^13281288 is an apocalyptic number.

It is an amenable number.

13281288 is an abundant number, since it is smaller than the sum of its proper divisors (20012472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13281288 is a wasteful number, since it uses less digits than its factorization.

13281288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1513 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 13281288 is about 3644.3501478316. The cubic root of 13281288 is about 236.8172851547.

The spelling of 13281288 in words is "thirteen million, two hundred eighty-one thousand, two hundred eighty-eight".