135161446021 has 8 divisors (see below), whose sum is σ = 154479078720. Its totient is φ = 115846027008.

The previous prime is 135161445977. The next prime is 135161446027. The reversal of 135161446021 is 120644161531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135161446021 - 2⁷ = 135161445893 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 (135161446027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420451 + ... + 668656.

It is an arithmetic number, because the mean of its divisors is an integer number (19309884840).

Almost surely, 2^135161446021 is an apocalyptic number.

It is an amenable number.

135161446021 is a deficient number, since it is larger than the sum of its proper divisors (19317632699).

135161446021 is a wasteful number, since it uses less digits than its factorization.

135161446021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106843.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 135161446021 in words is "one hundred thirty-five billion, one hundred sixty-one million, four hundred forty-six thousand, twenty-one".