13475421 has 12 divisors (see below), whose sum is σ = 20092800. Its totient is φ = 8693640.

The previous prime is 13475419. The next prime is 13475431. The reversal of 13475421 is 12457431.

13475421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13475421 - 2¹ = 13475419 is a prime.

It is a super-2 number, since 2×13475421² = 363173942254482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13475431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23871 + ... + 24428.

It is an arithmetic number, because the mean of its divisors is an integer number (1674400).

Almost surely, 2^13475421 is an apocalyptic number.

It is an amenable number.

13475421 is a deficient number, since it is larger than the sum of its proper divisors (6617379).

13475421 is a wasteful number, since it uses less digits than its factorization.

13475421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48336 (or 48333 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 13475421 is about 3670.8883121119. Note that the first 3 decimals coincide. The cubic root of 13475421 is about 237.9655635980.

The spelling of 13475421 in words is "thirteen million, four hundred seventy-five thousand, four hundred twenty-one".