13501481 has 8 divisors (see below), whose sum is σ = 15474624. Its totient is φ = 11539440.

The previous prime is 13501471. The next prime is 13501489. The reversal of 13501481 is 18410531.

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 13501481 - 2¹⁸ = 13239337 is a prime.

It is a super-2 number, since 2×13501481² = 364579978386722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13501489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (1934328).

Almost surely, 2^13501481 is an apocalyptic number.

It is an amenable number.

13501481 is a deficient number, since it is larger than the sum of its proper divisors (1973143).

13501481 is an equidigital number, since it uses as much as digits as its factorization.

13501481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 13501481 is about 3674.4361472204. The cubic root of 13501481 is about 238.1188646656.

The spelling of 13501481 in words is "thirteen million, five hundred one thousand, four hundred eighty-one".