13761457 has 4 divisors (see below), whose sum is σ = 14236020. Its totient is φ = 13286896.

The previous prime is 13761443. The next prime is 13761463. The reversal of 13761457 is 75416731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10342656 + 3418801 = 3216^2 + 1849^2 .

It is a cyclic number.

It is not a de Polignac number, because 13761457 - 2⁷ = 13761329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13761437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237238 + ... + 237295.

It is an arithmetic number, because the mean of its divisors is an integer number (3559005).

Almost surely, 2^13761457 is an apocalyptic number.

It is an amenable number.

13761457 is a deficient number, since it is larger than the sum of its proper divisors (474563).

13761457 is an equidigital number, since it uses as much as digits as its factorization.

13761457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474562.

The product of its digits is 17640, while the sum is 34.

The square root of 13761457 is about 3709.6437834380. The cubic root of 13761457 is about 239.6375141349.

The spelling of 13761457 in words is "thirteen million, seven hundred sixty-one thousand, four hundred fifty-seven".