13403475 has 30 divisors (see below), whose sum is σ = 24831620. Its totient is φ = 7147440.

The previous prime is 13403471. The next prime is 13403477. The reversal of 13403475 is 57430431.

It is not a de Polignac number, because 13403475 - 2² = 13403471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13403471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1285 + ... + 5334.

Almost surely, 2^13403475 is an apocalyptic number.

13403475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13403475 is a deficient number, since it is larger than the sum of its proper divisors (11428145).

13403475 is an equidigital number, since it uses as much as digits as its factorization.

13403475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 13403475 is about 3661.0756616055. The cubic root of 13403475 is about 237.5413039890.

The spelling of 13403475 in words is "thirteen million, four hundred three thousand, four hundred seventy-five".