13746021 has 8 divisors (see below), whose sum is σ = 18387840. Its totient is φ = 9134112.

The previous prime is 13746011. The next prime is 13746023. The reversal of 13746021 is 12064731.

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

It is not a de Polignac number, because 13746021 - 2⁶ = 13745957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13745982 and 13746000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13746023) 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, 6381 + ... + 8258.

It is an arithmetic number, because the mean of its divisors is an integer number (2298480).

Almost surely, 2^13746021 is an apocalyptic number.

It is an amenable number.

13746021 is a deficient number, since it is larger than the sum of its proper divisors (4641819).

13746021 is a wasteful number, since it uses less digits than its factorization.

13746021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14955.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13746021 is about 3707.5626764763. The cubic root of 13746021 is about 239.5478814605.

The spelling of 13746021 in words is "thirteen million, seven hundred forty-six thousand, twenty-one".