135713251 has 2 divisors, whose sum is σ = 135713252. Its totient is φ = 135713250.

The previous prime is 135713209. The next prime is 135713267. The reversal of 135713251 is 152317531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135713251 is a prime.

It is not a weakly prime, because it can be changed into another prime (135713951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67856625 + 67856626.

It is an arithmetic number, because the mean of its divisors is an integer number (67856626).

Almost surely, 2^135713251 is an apocalyptic number.

135713251 is a deficient number, since it is larger than the sum of its proper divisors (1).

135713251 is an equidigital number, since it uses as much as digits as its factorization.

135713251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 28.

The square root of 135713251 is about 11649.6030404473. The cubic root of 135713251 is about 513.8946361572.

The spelling of 135713251 in words is "one hundred thirty-five million, seven hundred thirteen thousand, two hundred fifty-one".