136603634 has 4 divisors (see below), whose sum is σ = 204905454. Its totient is φ = 68301816.

The previous prime is 136603603. The next prime is 136603651. The reversal of 136603634 is 436306631.

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

It can be written as a sum of positive squares in only one way, i.e., 134629609 + 1974025 = 11603^2 + 1405^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136603634.

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 as a sum of consecutive naturals, namely, 34150907 + ... + 34150910.

Almost surely, 2^136603634 is an apocalyptic number.

136603634 is a deficient number, since it is larger than the sum of its proper divisors (68301820).

136603634 is an equidigital number, since it uses as much as digits as its factorization.

136603634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68301819.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 136603634 is about 11687.7557298226. The cubic root of 136603634 is about 515.0160349423.

The spelling of 136603634 in words is "one hundred thirty-six million, six hundred three thousand, six hundred thirty-four".