135221014 has 8 divisors (see below), whose sum is σ = 208313568. Its totient is φ = 65783160.

The previous prime is 135220973. The next prime is 135221033. The reversal of 135221014 is 410122531.

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

It is a junction number, because it is equal to n+sod(n) for n = 135220982 and 135221000.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 913582 + ... + 913729.

It is an arithmetic number, because the mean of its divisors is an integer number (26039196).

Almost surely, 2^135221014 is an apocalyptic number.

135221014 is a deficient number, since it is larger than the sum of its proper divisors (73092554).

135221014 is a wasteful number, since it uses less digits than its factorization.

135221014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827350.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 135221014 is about 11628.4570773598. The cubic root of 135221014 is about 513.2725784997.

Adding to 135221014 its reverse (410122531), we get a palindrome (545343545).

It can be divided in two parts, 1352 and 21014, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 135221014 in words is "one hundred thirty-five million, two hundred twenty-one thousand, fourteen".