13151481 has 8 divisors (see below), whose sum is σ = 20040384. Its totient is φ = 7515120.

The previous prime is 13151459. The next prime is 13151503. The reversal of 13151481 is 18415131.

It is an interprime number because it is at equal distance from previous prime (13151459) and next prime (13151503).

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

It is not a de Polignac number, because 13151481 - 2⁵ = 13151449 is a prime.

It is a super-2 number, since 2×13151481² = 345922904986722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13151431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 313110 + ... + 313151.

It is an arithmetic number, because the mean of its divisors is an integer number (2505048).

Almost surely, 2^13151481 is an apocalyptic number.

It is an amenable number.

13151481 is a deficient number, since it is larger than the sum of its proper divisors (6888903).

13151481 is an equidigital number, since it uses as much as digits as its factorization.

13151481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626271.

The product of its digits is 480, while the sum is 24.

The square root of 13151481 is about 3626.4970701767. The cubic root of 13151481 is about 236.0432327673.

The spelling of 13151481 in words is "thirteen million, one hundred fifty-one thousand, four hundred eighty-one".