13731071 has 2 divisors, whose sum is σ = 13731072. Its totient is φ = 13731070.

The previous prime is 13731059. The next prime is 13731083. The reversal of 13731071 is 17013731.

It is a balanced prime because it is at equal distance from previous prime (13731059) and next prime (13731083).

It is a cyclic number.

It is not a de Polignac number, because 13731071 - 2¹⁰ = 13730047 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13731001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6865535 + 6865536.

It is an arithmetic number, because the mean of its divisors is an integer number (6865536).

Almost surely, 2^13731071 is an apocalyptic number.

13731071 is a deficient number, since it is larger than the sum of its proper divisors (1).

13731071 is an equidigital number, since it uses as much as digits as its factorization.

13731071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 13731071 is about 3705.5459786650. The cubic root of 13731071 is about 239.4610068680.

The spelling of 13731071 in words is "thirteen million, seven hundred thirty-one thousand, seventy-one".