13740523 has 2 divisors, whose sum is σ = 13740524. Its totient is φ = 13740522.

The previous prime is 13740487. The next prime is 13740527. The reversal of 13740523 is 32504731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13740523 - 2¹³ = 13732331 is a prime.

It is not a weakly prime, because it can be changed into another prime (13740527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6870261 + 6870262.

It is an arithmetic number, because the mean of its divisors is an integer number (6870262).

Almost surely, 2^13740523 is an apocalyptic number.

13740523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13740523 is an equidigital number, since it uses as much as digits as its factorization.

13740523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 13740523 is about 3706.8211448625. The cubic root of 13740523 is about 239.5159398564.

The spelling of 13740523 in words is "thirteen million, seven hundred forty thousand, five hundred twenty-three".