13121475 has 24 divisors (see below), whose sum is σ = 22110192. Its totient is φ = 6864000.

The previous prime is 13121473. The next prime is 13121489. The reversal of 13121475 is 57412131.

13121475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13121475 - 2¹ = 13121473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2325 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (921258).

Almost surely, 2^13121475 is an apocalyptic number.

13121475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13121475 is a deficient number, since it is larger than the sum of its proper divisors (8988717).

13121475 is a wasteful number, since it uses less digits than its factorization.

13121475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367 (or 3362 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 13121475 is about 3622.3576576589. The cubic root of 13121475 is about 235.8635798282.

The spelling of 13121475 in words is "thirteen million, one hundred twenty-one thousand, four hundred seventy-five".