135206315526522 has 64 divisors (see below), whose sum is σ = 277140310272000. Its totient is φ = 43948546437120.

The previous prime is 135206315526461. The next prime is 135206315526677. The reversal of 135206315526522 is 225625513602531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8120978854 + ... + 8120995502.

It is an arithmetic number, because the mean of its divisors is an integer number (4330317348000).

Almost surely, 2^{135206315526522} is an apocalyptic number.

135206315526522 is an abundant number, since it is smaller than the sum of its proper divisors (141933994745478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135206315526522 is a wasteful number, since it uses less digits than its factorization.

135206315526522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30471.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 135206315526522 in words is "one hundred thirty-five trillion, two hundred six billion, three hundred fifteen million, five hundred twenty-six thousand, five hundred twenty-two".