13478132 has 6 divisors (see below), whose sum is σ = 23586738. Its totient is φ = 6739064.

The previous prime is 13478131. The next prime is 13478141. The reversal of 13478132 is 23187431.

It can be written as a sum of positive squares in only one way, i.e., 7107556 + 6370576 = 2666^2 + 2524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13478095 and 13478104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13478131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1684763 + ... + 1684770.

It is an arithmetic number, because the mean of its divisors is an integer number (3931123).

Almost surely, 2^13478132 is an apocalyptic number.

It is an amenable number.

13478132 is a deficient number, since it is larger than the sum of its proper divisors (10108606).

13478132 is a wasteful number, since it uses less digits than its factorization.

13478132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369537 (or 3369535 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 13478132 is about 3671.2575502136. The cubic root of 13478132 is about 237.9815205858.

The spelling of 13478132 in words is "thirteen million, four hundred seventy-eight thousand, one hundred thirty-two".