13271992 has 8 divisors (see below), whose sum is σ = 24885000. Its totient is φ = 6635992.

The previous prime is 13271981. The next prime is 13272023. The reversal of 13271992 is 29917231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13271992² = 352291543296128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829492 + ... + 829507.

It is an arithmetic number, because the mean of its divisors is an integer number (3110625).

Almost surely, 2^13271992 is an apocalyptic number.

It is an amenable number.

13271992 is a deficient number, since it is larger than the sum of its proper divisors (11613008).

13271992 is a wasteful number, since it uses less digits than its factorization.

13271992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659005 (or 1659001 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 13271992 is about 3643.0745257269. The cubic root of 13271992 is about 236.7620202511.

The spelling of 13271992 in words is "thirteen million, two hundred seventy-one thousand, nine hundred ninety-two".