136304641 has 4 divisors (see below), whose sum is σ = 148695984. Its totient is φ = 123913300.

The previous prime is 136304621. The next prime is 136304659. The reversal of 136304641 is 146403631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146403631 = 11 ⋅13309421.

It is a cyclic number.

It is not a de Polignac number, because 136304641 - 2¹⁵ = 136271873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136304621) 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 3 ways as a sum of consecutive naturals, for example, 6195655 + ... + 6195676.

It is an arithmetic number, because the mean of its divisors is an integer number (37173996).

Almost surely, 2^136304641 is an apocalyptic number.

136304641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136304641 is a deficient number, since it is larger than the sum of its proper divisors (12391343).

136304641 is a wasteful number, since it uses less digits than its factorization.

136304641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391342.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 136304641 is about 11674.9578585963. The cubic root of 136304641 is about 514.6400110937.

The spelling of 136304641 in words is "one hundred thirty-six million, three hundred four thousand, six hundred forty-one".