13281995 has 4 divisors (see below), whose sum is σ = 15938400. Its totient is φ = 10625592.

The previous prime is 13281973. The next prime is 13282019. The reversal of 13281995 is 59918231.

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

It is a cyclic number.

It is not a de Polignac number, because 13281995 - 2¹² = 13277899 is a prime.

It is a super-2 number, since 2×13281995² = 352822782360050, which contains 22 as substring.

It is an unprimeable number.

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, 1328195 + ... + 1328204.

It is an arithmetic number, because the mean of its divisors is an integer number (3984600).

Almost surely, 2^13281995 is an apocalyptic number.

13281995 is a deficient number, since it is larger than the sum of its proper divisors (2656405).

13281995 is an equidigital number, since it uses as much as digits as its factorization.

13281995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656404.

The product of its digits is 19440, while the sum is 38.

The square root of 13281995 is about 3644.4471460017. The cubic root of 13281995 is about 236.8214872283.

The spelling of 13281995 in words is "thirteen million, two hundred eighty-one thousand, nine hundred ninety-five".