30206461 has 2 divisors, whose sum is σ = 30206462. Its totient is φ = 30206460.

The previous prime is 30206441. The next prime is 30206509. The reversal of 30206461 is 16460203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26988025 + 3218436 = 5195^2 + 1794^2 .

It is a cyclic number.

It is not a de Polignac number, because 30206461 - 2¹³ = 30198269 is a prime.

It is a super-2 number, since 2×30206461² = 1824860572289042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30206411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15103230 + 15103231.

It is an arithmetic number, because the mean of its divisors is an integer number (15103231).

Almost surely, 2^30206461 is an apocalyptic number.

It is an amenable number.

30206461 is a deficient number, since it is larger than the sum of its proper divisors (1).

30206461 is an equidigital number, since it uses as much as digits as its factorization.

30206461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30206461 is about 5496.0404838393. The cubic root of 30206461 is about 311.4344242310.

Adding to 30206461 its reverse (16460203), we get a palindrome (46666664).

The spelling of 30206461 in words is "thirty million, two hundred six thousand, four hundred sixty-one".