13732881 has 4 divisors (see below), whose sum is σ = 18310512. Its totient is φ = 9155252.

The previous prime is 13732879. The next prime is 13732933. The reversal of 13732881 is 18823731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18823731 = 3 ⋅6274577.

It is a cyclic number.

It is not a de Polignac number, because 13732881 - 2¹ = 13732879 is a prime.

It is a super-2 number, since 2×13732881² = 377184041120322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13732811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288811 + ... + 2288816.

It is an arithmetic number, because the mean of its divisors is an integer number (4577628).

Almost surely, 2^13732881 is an apocalyptic number.

It is an amenable number.

13732881 is a deficient number, since it is larger than the sum of its proper divisors (4577631).

13732881 is an equidigital number, since it uses as much as digits as its factorization.

13732881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577630.

The product of its digits is 8064, while the sum is 33.

The square root of 13732881 is about 3705.7901991343. The cubic root of 13732881 is about 239.4715281493.

The spelling of 13732881 in words is "thirteen million, seven hundred thirty-two thousand, eight hundred eighty-one".