135361406291 has 2 divisors, whose sum is σ = 135361406292. Its totient is φ = 135361406290.

The previous prime is 135361406273. The next prime is 135361406293. The reversal of 135361406291 is 192604163531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135361406291 - 2³⁴ = 118181537107 is a prime.

It is a Sophie Germain prime.

Together with 135361406293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135361406293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67680703145 + 67680703146.

It is an arithmetic number, because the mean of its divisors is an integer number (67680703146).

Almost surely, 2^135361406291 is an apocalyptic number.

135361406291 is a deficient number, since it is larger than the sum of its proper divisors (1).

135361406291 is an equidigital number, since it uses as much as digits as its factorization.

135361406291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 135361406291 in words is "one hundred thirty-five billion, three hundred sixty-one million, four hundred six thousand, two hundred ninety-one".