30226661 has 2 divisors, whose sum is σ = 30226662. Its totient is φ = 30226660.

The previous prime is 30226657. The next prime is 30226699. The reversal of 30226661 is 16662203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 7806436 = 4735^2 + 2794^2 .

It is an emirp because it is prime and its reverse (16662203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30226661 - 2² = 30226657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30226661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30226631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15113330 + 15113331.

It is an arithmetic number, because the mean of its divisors is an integer number (15113331).

Almost surely, 2^30226661 is an apocalyptic number.

It is an amenable number.

30226661 is a deficient number, since it is larger than the sum of its proper divisors (1).

30226661 is an equidigital number, since it uses as much as digits as its factorization.

30226661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30226661 is about 5497.8778633214. The cubic root of 30226661 is about 311.5038307239.

Adding to 30226661 its reverse (16662203), we get a palindrome (46888864).

The spelling of 30226661 in words is "thirty million, two hundred twenty-six thousand, six hundred sixty-one".