135734516221 has 8 divisors (see below), whose sum is σ = 136104446720. Its totient is φ = 135365070672.

The previous prime is 135734516131. The next prime is 135734516311. The reversal of 135734516221 is 122615437531.

It is an interprime number because it is at equal distance from previous prime (135734516131) and next prime (135734516311).

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 135734516221 - 2¹⁵ = 135734483453 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 (135734514221) 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 7 ways as a sum of consecutive naturals, for example, 442876 + ... + 683818.

It is an arithmetic number, because the mean of its divisors is an integer number (17013055840).

Almost surely, 2^135734516221 is an apocalyptic number.

It is an amenable number.

135734516221 is a deficient number, since it is larger than the sum of its proper divisors (369930499).

135734516221 is an equidigital number, since it uses as much as digits as its factorization.

135734516221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242475.

The product of its digits is 151200, while the sum is 40.

The spelling of 135734516221 in words is "one hundred thirty-five billion, seven hundred thirty-four million, five hundred sixteen thousand, two hundred twenty-one".