135960421 has 8 divisors (see below), whose sum is σ = 136785600. Its totient is φ = 135138432.

The previous prime is 135960359. The next prime is 135960427. The reversal of 135960421 is 124069531.

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 135960421 - 2¹⁷ = 135829349 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 (135960427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211126 + ... + 211768.

It is an arithmetic number, because the mean of its divisors is an integer number (17098200).

Almost surely, 2^135960421 is an apocalyptic number.

It is an amenable number.

135960421 is a deficient number, since it is larger than the sum of its proper divisors (825179).

135960421 is an equidigital number, since it uses as much as digits as its factorization.

135960421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 135960421 is about 11660.2067305859. The cubic root of 135960421 is about 514.2064266473.

The spelling of 135960421 in words is "one hundred thirty-five million, nine hundred sixty thousand, four hundred twenty-one".