13249081 has 8 divisors (see below), whose sum is σ = 13869504. Its totient is φ = 12632400.

The previous prime is 13249051. The next prime is 13249111. The reversal of 13249081 is 18094231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13249051) and next prime (13249111).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13249081 - 2⁷ = 13248953 is a prime.

It is a super-2 number, since 2×13249081² = 351076294689122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13249051) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8406 + ... + 9856.

It is an arithmetic number, because the mean of its divisors is an integer number (1733688).

Almost surely, 2^13249081 is an apocalyptic number.

It is an amenable number.

13249081 is a deficient number, since it is larger than the sum of its proper divisors (620423).

13249081 is a wasteful number, since it uses less digits than its factorization.

13249081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13249081 is about 3639.9287080931. The cubic root of 13249081 is about 236.6257036380.

The spelling of 13249081 in words is "thirteen million, two hundred forty-nine thousand, eighty-one".