135587816 has 32 divisors (see below), whose sum is σ = 312896640. Its totient is φ = 53638848.

The previous prime is 135587813. The next prime is 135587849. The reversal of 135587816 is 618785531.

135587816 = T₂₀₉ + T₂₁₀ + ... + T₉₃₆.

It is not an unprimeable number, because it can be changed into a prime (135587813) 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 7 ways as a sum of consecutive naturals, for example, 92396 + ... + 93851.

It is an arithmetic number, because the mean of its divisors is an integer number (9778020).

Almost surely, 2^135587816 is an apocalyptic number.

It is an amenable number.

135587816 is an abundant number, since it is smaller than the sum of its proper divisors (177308824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135587816 is a wasteful number, since it uses less digits than its factorization.

135587816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186273 (or 186269 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The square root of 135587816 is about 11644.2181360536. The cubic root of 135587816 is about 513.7362624222.

The spelling of 135587816 in words is "one hundred thirty-five million, five hundred eighty-seven thousand, eight hundred sixteen".