13501081 has 8 divisors (see below), whose sum is σ = 14783904. Its totient is φ = 12227520.

The previous prime is 13501073. The next prime is 13501087. The reversal of 13501081 is 18010531.

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 13501081 - 2³ = 13501073 is a prime.

It is a super-2 number, since 2×13501081² = 364558376337122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13501087) 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, 945 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (1847988).

Almost surely, 2^13501081 is an apocalyptic number.

13501081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13501081 is a deficient number, since it is larger than the sum of its proper divisors (1282823).

13501081 is a wasteful number, since it uses less digits than its factorization.

13501081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 13501081 is about 3674.3817166974. The cubic root of 13501081 is about 238.1165131091.

The spelling of 13501081 in words is "thirteen million, five hundred one thousand, eighty-one".