136815572 has 24 divisors (see below), whose sum is σ = 244127520. Its totient is φ = 67071200.

The previous prime is 136815571. The next prime is 136815583. The reversal of 136815572 is 275518631.

136815572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136815571) 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, 165023 + ... + 165849.

It is an arithmetic number, because the mean of its divisors is an integer number (10171980).

Almost surely, 2^136815572 is an apocalyptic number.

It is an amenable number.

136815572 is a deficient number, since it is larger than the sum of its proper divisors (107311948).

136815572 is a wasteful number, since it uses less digits than its factorization.

136815572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1589 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 136815572 is about 11696.8188837820. The cubic root of 136815572 is about 515.2822432537.

The spelling of 136815572 in words is "one hundred thirty-six million, eight hundred fifteen thousand, five hundred seventy-two".