135324521 has 2 divisors, whose sum is σ = 135324522. Its totient is φ = 135324520.

The previous prime is 135324493. The next prime is 135324533. The reversal of 135324521 is 125423531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 62410000 = 8539^2 + 7900^2 .

It is a cyclic number.

It is not a de Polignac number, because 135324521 - 2⁶ = 135324457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135321521) by changing a digit.

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, 67662260 + 67662261.

It is an arithmetic number, because the mean of its divisors is an integer number (67662261).

Almost surely, 2^135324521 is an apocalyptic number.

It is an amenable number.

135324521 is a deficient number, since it is larger than the sum of its proper divisors (1).

135324521 is an equidigital number, since it uses as much as digits as its factorization.

135324521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 135324521 is about 11632.9068164410. The cubic root of 135324521 is about 513.4035092213.

The spelling of 135324521 in words is "one hundred thirty-five million, three hundred twenty-four thousand, five hundred twenty-one".