135420349 has 2 divisors, whose sum is σ = 135420350. Its totient is φ = 135420348.

The previous prime is 135420323. The next prime is 135420367. The reversal of 135420349 is 943024531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81324324 + 54096025 = 9018^2 + 7355^2 .

It is a cyclic number.

It is not a de Polignac number, because 135420349 - 2⁷ = 135420221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135420349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135420319) 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, 67710174 + 67710175.

It is an arithmetic number, because the mean of its divisors is an integer number (67710175).

Almost surely, 2^135420349 is an apocalyptic number.

It is an amenable number.

135420349 is a deficient number, since it is larger than the sum of its proper divisors (1).

135420349 is an equidigital number, since it uses as much as digits as its factorization.

135420349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 135420349 is about 11637.0249204855. The cubic root of 135420349 is about 513.5246669210.

The spelling of 135420349 in words is "one hundred thirty-five million, four hundred twenty thousand, three hundred forty-nine".