135421522 has 4 divisors (see below), whose sum is σ = 203132286. Its totient is φ = 67710760.

The previous prime is 135421501. The next prime is 135421553. The reversal of 135421522 is 225124531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 131583841 + 3837681 = 11471^2 + 1959^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33855379 + ... + 33855382.

Almost surely, 2^135421522 is an apocalyptic number.

135421522 is a deficient number, since it is larger than the sum of its proper divisors (67710764).

135421522 is an equidigital number, since it uses as much as digits as its factorization.

135421522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67710763.

The product of its digits is 2400, while the sum is 25.

The square root of 135421522 is about 11637.0753198559. The cubic root of 135421522 is about 513.5261496196.

The spelling of 135421522 in words is "one hundred thirty-five million, four hundred twenty-one thousand, five hundred twenty-two".