35201681 has 2 divisors, whose sum is σ = 35201682. Its totient is φ = 35201680.

The previous prime is 35201669. The next prime is 35201687. The reversal of 35201681 is 18610253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 8317456 = 5185^2 + 2884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35201681 is a prime.

It is a super-2 number, since 2×35201681² = 2478316690451522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 35201681.

It is not a weakly prime, because it can be changed into another prime (35201687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17600840 + 17600841.

It is an arithmetic number, because the mean of its divisors is an integer number (17600841).

Almost surely, 2^35201681 is an apocalyptic number.

It is an amenable number.

35201681 is a deficient number, since it is larger than the sum of its proper divisors (1).

35201681 is an equidigital number, since it uses as much as digits as its factorization.

35201681 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 35201681 is about 5933.1004542313. The cubic root of 35201681 is about 327.7337251233.

The spelling of 35201681 in words is "thirty-five million, two hundred one thousand, six hundred eighty-one".