135379553 has 2 divisors, whose sum is σ = 135379554. Its totient is φ = 135379552.

The previous prime is 135379549. The next prime is 135379561. The reversal of 135379553 is 355973531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131148304 + 4231249 = 11452^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 135379553 - 2² = 135379549 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135379553.

It is not a weakly prime, because it can be changed into another prime (135379583) 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, 67689776 + 67689777.

It is an arithmetic number, because the mean of its divisors is an integer number (67689777).

Almost surely, 2^135379553 is an apocalyptic number.

It is an amenable number.

135379553 is a deficient number, since it is larger than the sum of its proper divisors (1).

135379553 is an equidigital number, since it uses as much as digits as its factorization.

135379553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 212625, while the sum is 41.

The square root of 135379553 is about 11635.2719349399. The cubic root of 135379553 is about 513.4730945230.

The spelling of 135379553 in words is "one hundred thirty-five million, three hundred seventy-nine thousand, five hundred fifty-three".