135452389 has 2 divisors, whose sum is σ = 135452390. Its totient is φ = 135452388.

The previous prime is 135452347. The next prime is 135452407. The reversal of 135452389 is 983254531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131217025 + 4235364 = 11455^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 135452389 - 2¹⁵ = 135419621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135450389) 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 as a sum of consecutive naturals, namely, 67726194 + 67726195.

It is an arithmetic number, because the mean of its divisors is an integer number (67726195).

Almost surely, 2^135452389 is an apocalyptic number.

It is an amenable number.

135452389 is a deficient number, since it is larger than the sum of its proper divisors (1).

135452389 is an equidigital number, since it uses as much as digits as its factorization.

135452389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 135452389 is about 11638.4014795847. The cubic root of 135452389 is about 513.5651631315.

The spelling of 135452389 in words is "one hundred thirty-five million, four hundred fifty-two thousand, three hundred eighty-nine".