35235145721 has 2 divisors, whose sum is σ = 35235145722. Its totient is φ = 35235145720.

The previous prime is 35235145709. The next prime is 35235145741. The reversal of 35235145721 is 12754153253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23215093225 + 12020052496 = 152365^2 + 109636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35235145721 is a prime.

It is not a weakly prime, because it can be changed into another prime (35235145741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17617572860 + 17617572861.

It is an arithmetic number, because the mean of its divisors is an integer number (17617572861).

Almost surely, 2^35235145721 is an apocalyptic number.

It is an amenable number.

35235145721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35235145721 is an equidigital number, since it uses as much as digits as its factorization.

35235145721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 38.

Adding to 35235145721 its reverse (12754153253), we get a palindrome (47989298974).

The spelling of 35235145721 in words is "thirty-five billion, two hundred thirty-five million, one hundred forty-five thousand, seven hundred twenty-one".