30126491 has 2 divisors, whose sum is σ = 30126492. Its totient is φ = 30126490.

The previous prime is 30126461. The next prime is 30126511. The reversal of 30126491 is 19462103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30126491 - 2¹⁰ = 30125467 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30126491.

It is not a weakly prime, because it can be changed into another prime (30126461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15063245 + 15063246.

It is an arithmetic number, because the mean of its divisors is an integer number (15063246).

Almost surely, 2^30126491 is an apocalyptic number.

30126491 is a deficient number, since it is larger than the sum of its proper divisors (1).

30126491 is an equidigital number, since it uses as much as digits as its factorization.

30126491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30126491 is about 5488.7604247225. The cubic root of 30126491 is about 311.1593459746.

Adding to 30126491 its reverse (19462103), we get a palindrome (49588594).

The spelling of 30126491 in words is "thirty million, one hundred twenty-six thousand, four hundred ninety-one".