136531064 has 8 divisors (see below), whose sum is σ = 255995760. Its totient is φ = 68265528.

The previous prime is 136531051. The next prime is 136531067. The reversal of 136531064 is 460135631.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136531067) 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 as a sum of consecutive naturals, namely, 8533184 + ... + 8533199.

It is an arithmetic number, because the mean of its divisors is an integer number (31999470).

Almost surely, 2^136531064 is an apocalyptic number.

It is an amenable number.

136531064 is a deficient number, since it is larger than the sum of its proper divisors (119464696).

136531064 is a wasteful number, since it uses less digits than its factorization.

136531064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17066389 (or 17066385 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 136531064 is about 11684.6507863949. The cubic root of 136531064 is about 514.9248188868.

Adding to 136531064 its reverse (460135631), we get a palindrome (596666695).

The spelling of 136531064 in words is "one hundred thirty-six million, five hundred thirty-one thousand, sixty-four".