13459021 has 8 divisors (see below), whose sum is σ = 13788000. Its totient is φ = 13133520.

The previous prime is 13459013. The next prime is 13459067. The reversal of 13459021 is 12095431.

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 13459021 - 2³ = 13459013 is a prime.

It is a super-2 number, since 2×13459021² = 362290492556882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13459001) 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, 8026 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (1723500).

Almost surely, 2^13459021 is an apocalyptic number.

It is an amenable number.

13459021 is a deficient number, since it is larger than the sum of its proper divisors (328979).

13459021 is a wasteful number, since it uses less digits than its factorization.

13459021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 13459021 is about 3668.6538403071. The cubic root of 13459021 is about 237.8689872827.

The spelling of 13459021 in words is "thirteen million, four hundred fifty-nine thousand, twenty-one".