136568544 has 48 divisors (see below), whose sum is σ = 409707648. Its totient is φ = 39019392.

The previous prime is 136568533. The next prime is 136568557. The reversal of 136568544 is 445865631.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 136568496 and 136568505.

It is a congruent number.

It is an unprimeable number.

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, 100942 + ... + 102285.

It is an arithmetic number, because the mean of its divisors is an integer number (8535576).

Almost surely, 2^136568544 is an apocalyptic number.

136568544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

136568544 is an abundant number, since it is smaller than the sum of its proper divisors (273139104).

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

136568544 is a wasteful number, since it uses less digits than its factorization.

136568544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203247 (or 203239 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 136568544 is about 11686.2544897841. The cubic root of 136568544 is about 514.9719329914.

The spelling of 136568544 in words is "one hundred thirty-six million, five hundred sixty-eight thousand, five hundred forty-four".