135440584 has 8 divisors (see below), whose sum is σ = 253951110. Its totient is φ = 67720288.

The previous prime is 135440579. The next prime is 135440587. The reversal of 135440584 is 485044531.

It can be written as a sum of positive squares in only one way, i.e., 99560484 + 35880100 = 9978^2 + 5990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×135440584² = 36688303588522112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135440587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8465029 + ... + 8465044.

Almost surely, 2^135440584 is an apocalyptic number.

It is an amenable number.

135440584 is a deficient number, since it is larger than the sum of its proper divisors (118510526).

135440584 is a wasteful number, since it uses less digits than its factorization.

135440584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16930079 (or 16930075 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 135440584 is about 11637.8943112575. The cubic root of 135440584 is about 513.5502432202.

The spelling of 135440584 in words is "one hundred thirty-five million, four hundred forty thousand, five hundred eighty-four".