135487487 has 2 divisors, whose sum is σ = 135487488. Its totient is φ = 135487486.

The previous prime is 135487481. The next prime is 135487543. The reversal of 135487487 is 784784531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135487487 - 2²⁰ = 134438911 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 (135487481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67743743 + 67743744.

It is an arithmetic number, because the mean of its divisors is an integer number (67743744).

Almost surely, 2^135487487 is an apocalyptic number.

135487487 is a deficient number, since it is larger than the sum of its proper divisors (1).

135487487 is an equidigital number, since it uses as much as digits as its factorization.

135487487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The square root of 135487487 is about 11639.9092350413. The cubic root of 135487487 is about 513.6095171012.

The spelling of 135487487 in words is "one hundred thirty-five million, four hundred eighty-seven thousand, four hundred eighty-seven".