136553447 has 2 divisors, whose sum is σ = 136553448. Its totient is φ = 136553446.

The previous prime is 136553407. The next prime is 136553491. The reversal of 136553447 is 744355631.

136553447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136553447 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136553447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136553407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68276723 + 68276724.

It is an arithmetic number, because the mean of its divisors is an integer number (68276724).

Almost surely, 2^136553447 is an apocalyptic number.

136553447 is a deficient number, since it is larger than the sum of its proper divisors (1).

136553447 is an equidigital number, since it uses as much as digits as its factorization.

136553447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 38.

The square root of 136553447 is about 11685.6085421342. The cubic root of 136553447 is about 514.9529563966.

The spelling of 136553447 in words is "one hundred thirty-six million, five hundred fifty-three thousand, four hundred forty-seven".