13375745 has 4 divisors (see below), whose sum is σ = 16050900. Its totient is φ = 10700592.

The previous prime is 13375711. The next prime is 13375783. The reversal of 13375745 is 54757331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54757331 = 2749 ⋅19919.

It can be written as a sum of positive squares in 2 ways, for example, as 4477456 + 8898289 = 2116^2 + 2983^2 .

It is a cyclic number.

It is not a de Polignac number, because 13375745 - 2¹⁰ = 13374721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337570 + ... + 1337579.

It is an arithmetic number, because the mean of its divisors is an integer number (4012725).

Almost surely, 2^13375745 is an apocalyptic number.

It is an amenable number.

13375745 is a deficient number, since it is larger than the sum of its proper divisors (2675155).

13375745 is an equidigital number, since it uses as much as digits as its factorization.

13375745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675154.

The product of its digits is 44100, while the sum is 35.

The square root of 13375745 is about 3657.2865624668. The cubic root of 13375745 is about 237.3773771431.

The spelling of 13375745 in words is "thirteen million, three hundred seventy-five thousand, seven hundred forty-five".