135161543 has 32 divisors (see below), whose sum is σ = 163114560. Its totient is φ = 110976000.

The previous prime is 135161539. The next prime is 135161561. The reversal of 135161543 is 345161531.

It is not a de Polignac number, because 135161543 - 2² = 135161539 is a prime.

It is a super-2 number, since 2×135161543² = 36537285412281698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135101543) 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 in 31 ways as a sum of consecutive naturals, for example, 2215733 + ... + 2215793.

It is an arithmetic number, because the mean of its divisors is an integer number (5097330).

Almost surely, 2^135161543 is an apocalyptic number.

135161543 is a deficient number, since it is larger than the sum of its proper divisors (27953017).

135161543 is an equidigital number, since it uses as much as digits as its factorization.

135161543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 130 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 135161543 is about 11625.8996641120. The cubic root of 135161543 is about 513.1973206959.

The spelling of 135161543 in words is "one hundred thirty-five million, one hundred sixty-one thousand, five hundred forty-three".