135257051 has 2 divisors, whose sum is σ = 135257052. Its totient is φ = 135257050.

The previous prime is 135257039. The next prime is 135257053. The reversal of 135257051 is 150752531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135257051 - 2²² = 131062747 is a prime.

It is a Sophie Germain prime.

Together with 135257053, 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 (135257053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67628525 + 67628526.

It is an arithmetic number, because the mean of its divisors is an integer number (67628526).

Almost surely, 2^135257051 is an apocalyptic number.

135257051 is a deficient number, since it is larger than the sum of its proper divisors (1).

135257051 is an equidigital number, since it uses as much as digits as its factorization.

135257051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 135257051 is about 11630.0064918297. The cubic root of 135257051 is about 513.3181709226.

The spelling of 135257051 in words is "one hundred thirty-five million, two hundred fifty-seven thousand, fifty-one".