35136581 has 2 divisors, whose sum is σ = 35136582. Its totient is φ = 35136580.

The previous prime is 35136557. The next prime is 35136583. The reversal of 35136581 is 18563153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 12716356 = 4735^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 35136581 - 2²² = 30942277 is a prime.

It is a super-2 number, since 2×35136581² = 2469158648739122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 35136583, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35136583) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17568290 + 17568291.

It is an arithmetic number, because the mean of its divisors is an integer number (17568291).

Almost surely, 2^35136581 is an apocalyptic number.

It is an amenable number.

35136581 is a deficient number, since it is larger than the sum of its proper divisors (1).

35136581 is an equidigital number, since it uses as much as digits as its factorization.

35136581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 35136581 is about 5927.6117450454. The cubic root of 35136581 is about 327.5315697089.

The spelling of 35136581 in words is "thirty-five million, one hundred thirty-six thousand, five hundred eighty-one".