136304253 has 6 divisors (see below), whose sum is σ = 196883934. Its totient is φ = 90869496.

The previous prime is 136304239. The next prime is 136304257. The reversal of 136304253 is 352403631.

It is a happy number.

136304253 is a `hidden beast` number, since 1 + 3 + 630 + 4 + 25 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 106131204 + 30173049 = 10302^2 + 5493^2 .

It is not a de Polignac number, because 136304253 - 2⁴ = 136304237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136304257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7572450 + ... + 7572467.

It is an arithmetic number, because the mean of its divisors is an integer number (32813989).

Almost surely, 2^136304253 is an apocalyptic number.

It is an amenable number.

136304253 is a deficient number, since it is larger than the sum of its proper divisors (60579681).

136304253 is a wasteful number, since it uses less digits than its factorization.

136304253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15144923 (or 15144920 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 136304253 is about 11674.9412418222. The cubic root of 136304253 is about 514.6395227745.

Adding to 136304253 its reverse (352403631), we get a palindrome (488707884).

The spelling of 136304253 in words is "one hundred thirty-six million, three hundred four thousand, two hundred fifty-three".