136620068 has 24 divisors (see below), whose sum is σ = 258829368. Its totient is φ = 62724096.

The previous prime is 136620049. The next prime is 136620079. The reversal of 136620068 is 860026631.

It can be written as a sum of positive squares in 4 ways, for example, as 13897984 + 122722084 = 3728^2 + 11078^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3230 + ... + 16842.

It is an arithmetic number, because the mean of its divisors is an integer number (10784557).

Almost surely, 2^136620068 is an apocalyptic number.

It is an amenable number.

136620068 is a deficient number, since it is larger than the sum of its proper divisors (122209300).

136620068 is a wasteful number, since it uses less digits than its factorization.

136620068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13823 (or 13821 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 136620068 is about 11688.4587521195. The cubic root of 136620068 is about 515.0366869896.

Adding to 136620068 its reverse (860026631), we get a palindrome (996646699).

The spelling of 136620068 in words is "one hundred thirty-six million, six hundred twenty thousand, sixty-eight".