30126361 has 2 divisors, whose sum is σ = 30126362. Its totient is φ = 30126360.

The previous prime is 30126353. The next prime is 30126377. The reversal of 30126361 is 16362103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18870336 + 11256025 = 4344^2 + 3355^2 .

It is a cyclic number.

It is not a de Polignac number, because 30126361 - 2³ = 30126353 is a prime.

It is not a weakly prime, because it can be changed into another prime (30126301) 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, 15063180 + 15063181.

It is an arithmetic number, because the mean of its divisors is an integer number (15063181).

Almost surely, 2^30126361 is an apocalyptic number.

It is an amenable number.

30126361 is a deficient number, since it is larger than the sum of its proper divisors (1).

30126361 is an equidigital number, since it uses as much as digits as its factorization.

30126361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30126361 is about 5488.7485823273. The cubic root of 30126361 is about 311.1588984086.

Adding to 30126361 its reverse (16362103), we get a palindrome (46488464).

It can be divided in two parts, 301 and 26361, that added together give a palindrome (26662).

The spelling of 30126361 in words is "thirty million, one hundred twenty-six thousand, three hundred sixty-one".