135615145211 has 16 divisors (see below), whose sum is σ = 176729241024. Its totient is φ = 100988135424.

The previous prime is 135615145201. The next prime is 135615145219. The reversal of 135615145211 is 112541516531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135615145211 is a prime.

It is a super-2 number, since 2×135615145211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135615145219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43830110 + ... + 43833203.

It is an arithmetic number, because the mean of its divisors is an integer number (11045577564).

Almost surely, 2^135615145211 is an apocalyptic number.

135615145211 is a deficient number, since it is larger than the sum of its proper divisors (41114095813).

135615145211 is a wasteful number, since it uses less digits than its factorization.

135615145211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87663350.

The product of its digits is 18000, while the sum is 35.

The spelling of 135615145211 in words is "one hundred thirty-five billion, six hundred fifteen million, one hundred forty-five thousand, two hundred eleven".