135404443487 has 2 divisors, whose sum is σ = 135404443488. Its totient is φ = 135404443486.

The previous prime is 135404443469. The next prime is 135404443501. The reversal of 135404443487 is 784344404531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135404443487 - 2²⁶ = 135337334623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135404443087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67702221743 + 67702221744.

It is an arithmetic number, because the mean of its divisors is an integer number (67702221744).

Almost surely, 2^135404443487 is an apocalyptic number.

135404443487 is a deficient number, since it is larger than the sum of its proper divisors (1).

135404443487 is an equidigital number, since it uses as much as digits as its factorization.

135404443487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 47.

The spelling of 135404443487 in words is "one hundred thirty-five billion, four hundred four million, four hundred forty-three thousand, four hundred eighty-seven".