135714581 has 2 divisors, whose sum is σ = 135714582. Its totient is φ = 135714580.

The previous prime is 135714563. The next prime is 135714589. The reversal of 135714581 is 185417531.

135714581 is nontrivially palindromic in base 15.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131446225 + 4268356 = 11465^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 135714581 - 2¹⁸ = 135452437 is a prime.

It is a super-2 number, since 2×135714581² = 36836894992011122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135714589) 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, 67857290 + 67857291.

It is an arithmetic number, because the mean of its divisors is an integer number (67857291).

Almost surely, 2^135714581 is an apocalyptic number.

It is an amenable number.

135714581 is a deficient number, since it is larger than the sum of its proper divisors (1).

135714581 is an equidigital number, since it uses as much as digits as its factorization.

135714581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 135714581 is about 11649.6601237976. The cubic root of 135714581 is about 513.8963148870.

The spelling of 135714581 in words is "one hundred thirty-five million, seven hundred fourteen thousand, five hundred eighty-one".