13377745 has 8 divisors (see below), whose sum is σ = 16084584. Its totient is φ = 10681344.

The previous prime is 13377739. The next prime is 13377769. The reversal of 13377745 is 54777331.

It can be written as a sum of positive squares in 4 ways, for example, as 3568321 + 9809424 = 1889^2 + 3132^2 .

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 13377745 - 2³ = 13377737 is a prime.

It is a super-2 number, since 2×13377745² = 357928122570050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (2010573).

Almost surely, 2^13377745 is an apocalyptic number.

It is an amenable number.

13377745 is a deficient number, since it is larger than the sum of its proper divisors (2706839).

13377745 is an equidigital number, since it uses as much as digits as its factorization.

13377745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219.

The product of its digits is 61740, while the sum is 37.

The square root of 13377745 is about 3657.5599790024. The cubic root of 13377745 is about 237.3892077886.

The spelling of 13377745 in words is "thirteen million, three hundred seventy-seven thousand, seven hundred forty-five".