135710251 has 2 divisors, whose sum is σ = 135710252. Its totient is φ = 135710250.

The previous prime is 135710203. The next prime is 135710261. The reversal of 135710251 is 152017531.

It is a strong prime.

It is an emirp because it is prime and its reverse (152017531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135710251 - 2¹⁷ = 135579179 is a prime.

It is not a weakly prime, because it can be changed into another prime (135710261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67855125 + 67855126.

It is an arithmetic number, because the mean of its divisors is an integer number (67855126).

Almost surely, 2^135710251 is an apocalyptic number.

135710251 is a deficient number, since it is larger than the sum of its proper divisors (1).

135710251 is an equidigital number, since it uses as much as digits as its factorization.

135710251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 135710251 is about 11649.4742799836. The cubic root of 135710251 is about 513.8908495084.

Adding to 135710251 its reverse (152017531), we get a palindrome (287727782).

The spelling of 135710251 in words is "one hundred thirty-five million, seven hundred ten thousand, two hundred fifty-one".