135473206531519 has 2 divisors, whose sum is σ = 135473206531520. Its totient is φ = 135473206531518.

The previous prime is 135473206531493. The next prime is 135473206531573. The reversal of 135473206531519 is 915135602374531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135473206531519 - 2⁷ = 135473206531391 is a prime.

It is a super-2 number, since 2×135473206531519² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135473206531519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135473206532519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67736603265759 + 67736603265760.

It is an arithmetic number, because the mean of its divisors is an integer number (67736603265760).

Almost surely, 2^{135473206531519} is an apocalyptic number.

135473206531519 is a deficient number, since it is larger than the sum of its proper divisors (1).

135473206531519 is an equidigital number, since it uses as much as digits as its factorization.

135473206531519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206000, while the sum is 55.

The spelling of 135473206531519 in words is "one hundred thirty-five trillion, four hundred seventy-three billion, two hundred six million, five hundred thirty-one thousand, five hundred nineteen".