13376561 has 8 divisors (see below), whose sum is σ = 14647584.
Its totient is φ = 12114720.
The previous prime is 13376549. The next prime is 13376579. The reversal of 13376561 is 16567331.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13376561 - 214 = 13360177 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13376521) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965 + ... + 5261.
It is an arithmetic number, because the mean of its divisors is an integer number (1830948).
Almost surely, 213376561 is an apocalyptic number.
13376561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
13376561 is a deficient number, since it is larger than the sum of its proper divisors (1271023).
13376561 is a wasteful number, since it uses less digits than its factorization.
13376561 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4591.
The product of its digits is 11340, while the sum is 32.
The square root of 13376561 is about 3657.3981188818.
The cubic root of 13376561 is about 237.3822041889.
The spelling of 13376561 in words is "thirteen million, three hundred seventy-six thousand, five hundred sixty-one".