135414126221 has 16 divisors (see below), whose sum is σ = 148931323008. Its totient is φ = 122101862400.

The previous prime is 135414126209. The next prime is 135414126311. The reversal of 135414126221 is 122621414531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135414126221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135414126521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620816 + ... + 810086.

It is an arithmetic number, because the mean of its divisors is an integer number (9308207688).

Almost surely, 2^135414126221 is an apocalyptic number.

135414126221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135414126221 is a deficient number, since it is larger than the sum of its proper divisors (13517196787).

135414126221 is a wasteful number, since it uses less digits than its factorization.

135414126221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189812.

The product of its digits is 11520, while the sum is 32.

The spelling of 135414126221 in words is "one hundred thirty-five billion, four hundred fourteen million, one hundred twenty-six thousand, two hundred twenty-one".