135585107227021 has 8 divisors (see below), whose sum is σ = 135632720329344. Its totient is φ = 135537502494240.

The previous prime is 135585107226979. The next prime is 135585107227049. The reversal of 135585107227021 is 120722701585531.

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 135585107227021 - 2⁷ = 135585107226893 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 (135585107227321) 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, 30401466 + ... + 34574836.

It is an arithmetic number, because the mean of its divisors is an integer number (16954090041168).

Almost surely, 2^{135585107227021} is an apocalyptic number.

It is an amenable number.

135585107227021 is a deficient number, since it is larger than the sum of its proper divisors (47613102323).

135585107227021 is an equidigital number, since it uses as much as digits as its factorization.

135585107227021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184771.

The product of its (nonzero) digits is 1176000, while the sum is 49.

The spelling of 135585107227021 in words is "one hundred thirty-five trillion, five hundred eighty-five billion, one hundred seven million, two hundred twenty-seven thousand, twenty-one".