135487818533 has 2 divisors, whose sum is σ = 135487818534. Its totient is φ = 135487818532.

The previous prime is 135487818463. The next prime is 135487818589. The reversal of 135487818533 is 335818784531.

It is an a-pointer prime, because the next prime (135487818589) can be obtained adding 135487818533 to its sum of digits (56).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124501005409 + 10986813124 = 352847^2 + 104818^2 .

It is a cyclic number.

It is not a de Polignac number, because 135487818533 - 2¹² = 135487814437 is a prime.

It is a super-2 number, since 2×135487818533² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135487811533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67743909266 + 67743909267.

It is an arithmetic number, because the mean of its divisors is an integer number (67743909267).

Almost surely, 2^135487818533 is an apocalyptic number.

It is an amenable number.

135487818533 is a deficient number, since it is larger than the sum of its proper divisors (1).

135487818533 is an equidigital number, since it uses as much as digits as its factorization.

135487818533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 56.

The spelling of 135487818533 in words is "one hundred thirty-five billion, four hundred eighty-seven million, eight hundred eighteen thousand, five hundred thirty-three".