135715553 has 2 divisors, whose sum is σ = 135715554. Its totient is φ = 135715552.

The previous prime is 135715543. The next prime is 135715583. The reversal of 135715553 is 355517531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134397649 + 1317904 = 11593^2 + 1148^2 .

It is a cyclic number.

It is not a de Polignac number, because 135715553 - 2²⁰ = 134666977 is a prime.

It is a super-2 number, since 2×135715553² = 36837422652191618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135715543) 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, 67857776 + 67857777.

It is an arithmetic number, because the mean of its divisors is an integer number (67857777).

Almost surely, 2^135715553 is an apocalyptic number.

It is an amenable number.

135715553 is a deficient number, since it is larger than the sum of its proper divisors (1).

135715553 is an equidigital number, since it uses as much as digits as its factorization.

135715553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39375, while the sum is 35.

The square root of 135715553 is about 11649.7018416782. The cubic root of 135715553 is about 513.8975417413.

The spelling of 135715553 in words is "one hundred thirty-five million, seven hundred fifteen thousand, five hundred fifty-three".