136399601 has 8 divisors (see below), whose sum is σ = 147743400. Its totient is φ = 125177472.

The previous prime is 136399589. The next prime is 136399603. The reversal of 136399601 is 106993631.

It can be written as a sum of positive squares in 4 ways, for example, as 52200625 + 84198976 = 7225^2 + 9176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136399601 - 2¹⁴ = 136383217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136399603) 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 in 7 ways as a sum of consecutive naturals, for example, 28076 + ... + 32573.

It is an arithmetic number, because the mean of its divisors is an integer number (18467925).

Almost surely, 2^136399601 is an apocalyptic number.

It is an amenable number.

136399601 is a deficient number, since it is larger than the sum of its proper divisors (11343799).

136399601 is a wasteful number, since it uses less digits than its factorization.

136399601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60835.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 136399601 is about 11679.0239746308. The cubic root of 136399601 is about 514.7594955823.

The spelling of 136399601 in words is "one hundred thirty-six million, three hundred ninety-nine thousand, six hundred one".