136718345 has 4 divisors (see below), whose sum is σ = 164062020. Its totient is φ = 109374672.

The previous prime is 136718341. The next prime is 136718353. The reversal of 136718345 is 543817631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38093584 + 98624761 = 6172^2 + 9931^2 .

It is a cyclic number.

It is not a de Polignac number, because 136718345 - 2² = 136718341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136718299 and 136718308.

It is not an unprimeable number, because it can be changed into a prime (136718341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13671830 + ... + 13671839.

It is an arithmetic number, because the mean of its divisors is an integer number (41015505).

Almost surely, 2^136718345 is an apocalyptic number.

It is an amenable number.

136718345 is a deficient number, since it is larger than the sum of its proper divisors (27343675).

136718345 is an equidigital number, since it uses as much as digits as its factorization.

136718345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27343674.

The product of its digits is 60480, while the sum is 38.

The square root of 136718345 is about 11692.6620151273. The cubic root of 136718345 is about 515.1601537912.

The spelling of 136718345 in words is "one hundred thirty-six million, seven hundred eighteen thousand, three hundred forty-five".