135309751 has 2 divisors, whose sum is σ = 135309752. Its totient is φ = 135309750.

The previous prime is 135309683. The next prime is 135309763. The reversal of 135309751 is 157903531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135309751 - 2⁷ = 135309623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135309781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67654875 + 67654876.

It is an arithmetic number, because the mean of its divisors is an integer number (67654876).

Almost surely, 2^135309751 is an apocalyptic number.

135309751 is a deficient number, since it is larger than the sum of its proper divisors (1).

135309751 is an equidigital number, since it uses as much as digits as its factorization.

135309751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 135309751 is about 11632.2719620889. The cubic root of 135309751 is about 513.3848300599.

The spelling of 135309751 in words is "one hundred thirty-five million, three hundred nine thousand, seven hundred fifty-one".