13377121 has 4 divisors (see below), whose sum is σ = 14081200. Its totient is φ = 12673044.

The previous prime is 13377103. The next prime is 13377131. The reversal of 13377121 is 12177331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12177331 = 373 ⋅32647.

It is a cyclic number.

It is not a de Polignac number, because 13377121 - 2²¹ = 11279969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13377131) 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 3 ways as a sum of consecutive naturals, for example, 352011 + ... + 352048.

It is an arithmetic number, because the mean of its divisors is an integer number (3520300).

Almost surely, 2^13377121 is an apocalyptic number.

It is an amenable number.

13377121 is a deficient number, since it is larger than the sum of its proper divisors (704079).

13377121 is an equidigital number, since it uses as much as digits as its factorization.

13377121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704078.

The product of its digits is 882, while the sum is 25.

The square root of 13377121 is about 3657.4746752370. The cubic root of 13377121 is about 237.3855167538.

The spelling of 13377121 in words is "thirteen million, three hundred seventy-seven thousand, one hundred twenty-one".