13140487 has 2 divisors, whose sum is σ = 13140488. Its totient is φ = 13140486.

The previous prime is 13140469. The next prime is 13140503. The reversal of 13140487 is 78404131.

13140487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13140487 - 2⁷ = 13140359 is a 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 (13140427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6570243 + 6570244.

It is an arithmetic number, because the mean of its divisors is an integer number (6570244).

Almost surely, 2^13140487 is an apocalyptic number.

13140487 is a deficient number, since it is larger than the sum of its proper divisors (1).

13140487 is an equidigital number, since it uses as much as digits as its factorization.

13140487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 13140487 is about 3624.9809654673. The cubic root of 13140487 is about 235.9774408677.

The spelling of 13140487 in words is "thirteen million, one hundred forty thousand, four hundred eighty-seven".