135504071 has 4 divisors (see below), whose sum is σ = 135531792. Its totient is φ = 135476352.

The previous prime is 135504049. The next prime is 135504073. The reversal of 135504071 is 170405531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170405531 = 773 ⋅220447.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135504071 is a prime.

It is a super-2 number, since 2×135504071² = 36722706515146082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135504071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135504073) 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 in 3 ways as a sum of consecutive naturals, for example, 4355 + ... + 17028.

It is an arithmetic number, because the mean of its divisors is an integer number (33882948).

Almost surely, 2^135504071 is an apocalyptic number.

135504071 is a deficient number, since it is larger than the sum of its proper divisors (27721).

135504071 is an equidigital number, since it uses as much as digits as its factorization.

135504071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27720.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 135504071 is about 11640.6215899324. The cubic root of 135504071 is about 513.6304719335.

The spelling of 135504071 in words is "one hundred thirty-five million, five hundred four thousand, seventy-one".