30212093 has 2 divisors, whose sum is σ = 30212094. Its totient is φ = 30212092.

The previous prime is 30212089. The next prime is 30212129. The reversal of 30212093 is 39021203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26759929 + 3452164 = 5173^2 + 1858^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212093 - 2² = 30212089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30212003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106046 + 15106047.

It is an arithmetic number, because the mean of its divisors is an integer number (15106047).

Almost surely, 2^30212093 is an apocalyptic number.

It is an amenable number.

30212093 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212093 is an equidigital number, since it uses as much as digits as its factorization.

30212093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30212093 is about 5496.5528288192. The cubic root of 30212093 is about 311.4537786960.

Adding to 30212093 its reverse (39021203), we get a palindrome (69233296).

The spelling of 30212093 in words is "thirty million, two hundred twelve thousand, ninety-three".