135320255407 has 2 divisors, whose sum is σ = 135320255408. Its totient is φ = 135320255406.

The previous prime is 135320255377. The next prime is 135320255429. The reversal of 135320255407 is 704552023531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135320255407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135320258407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67660127703 + 67660127704.

It is an arithmetic number, because the mean of its divisors is an integer number (67660127704).

Almost surely, 2^135320255407 is an apocalyptic number.

135320255407 is a deficient number, since it is larger than the sum of its proper divisors (1).

135320255407 is an equidigital number, since it uses as much as digits as its factorization.

135320255407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 37.

Adding to 135320255407 its reverse (704552023531), we get a palindrome (839872278938).

The spelling of 135320255407 in words is "one hundred thirty-five billion, three hundred twenty million, two hundred fifty-five thousand, four hundred seven".