135776447 has 2 divisors, whose sum is σ = 135776448. Its totient is φ = 135776446.

The previous prime is 135776437. The next prime is 135776471. The reversal of 135776447 is 744677531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135776447 - 2²⁶ = 68667583 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 135776398 and 135776407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135776437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67888223 + 67888224.

It is an arithmetic number, because the mean of its divisors is an integer number (67888224).

Almost surely, 2^135776447 is an apocalyptic number.

135776447 is a deficient number, since it is larger than the sum of its proper divisors (1).

135776447 is an equidigital number, since it uses as much as digits as its factorization.

135776447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 44.

The square root of 135776447 is about 11652.3150918605. The cubic root of 135776447 is about 513.9743902112.

The spelling of 135776447 in words is "one hundred thirty-five million, seven hundred seventy-six thousand, four hundred forty-seven".