35621081 has 2 divisors, whose sum is σ = 35621082. Its totient is φ = 35621080.

The previous prime is 35621059. The next prime is 35621111. The reversal of 35621081 is 18012653.

35621081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 10621081 = 5000^2 + 3259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35621081 is a prime.

It is a super-2 number, since 2×35621081² = 2537722823217122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_2182481 and since 35621081 and 2182481 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 35621081.

It is not a weakly prime, because it can be changed into another prime (35621041) 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, 17810540 + 17810541.

It is an arithmetic number, because the mean of its divisors is an integer number (17810541).

Almost surely, 2^35621081 is an apocalyptic number.

It is an amenable number.

35621081 is a deficient number, since it is larger than the sum of its proper divisors (1).

35621081 is an equidigital number, since it uses as much as digits as its factorization.

35621081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 35621081 is about 5968.3398864341. The cubic root of 35621081 is about 329.0301521686.

The spelling of 35621081 in words is "thirty-five million, six hundred twenty-one thousand, eighty-one".