13180378 has 4 divisors (see below), whose sum is σ = 19770570. Its totient is φ = 6590188.

The previous prime is 13180361. The next prime is 13180381. The reversal of 13180378 is 87308131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87308131 = 2621 ⋅33311.

It can be written as a sum of positive squares in only one way, i.e., 10093329 + 3087049 = 3177^2 + 1757^2 .

It is an unprimeable number.

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, 3295093 + ... + 3295096.

Almost surely, 2^13180378 is an apocalyptic number.

13180378 is a deficient number, since it is larger than the sum of its proper divisors (6590192).

13180378 is an equidigital number, since it uses as much as digits as its factorization.

13180378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590191.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 13180378 is about 3630.4790317532. The cubic root of 13180378 is about 236.2159877503.

The spelling of 13180378 in words is "thirteen million, one hundred eighty thousand, three hundred seventy-eight".