135645407 has 2 divisors, whose sum is σ = 135645408. Its totient is φ = 135645406.

The previous prime is 135645403. The next prime is 135645413. The reversal of 135645407 is 704546531.

135645407 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 not a de Polignac number, because 135645407 - 2² = 135645403 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135645401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67822703 + 67822704.

It is an arithmetic number, because the mean of its divisors is an integer number (67822704).

Almost surely, 2^135645407 is an apocalyptic number.

135645407 is a deficient number, since it is larger than the sum of its proper divisors (1).

135645407 is an equidigital number, since it uses as much as digits as its factorization.

135645407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 135645407 is about 11646.6908175670. The cubic root of 135645407 is about 513.8089887137.

The spelling of 135645407 in words is "one hundred thirty-five million, six hundred forty-five thousand, four hundred seven".