30964261 has 2 divisors, whose sum is σ = 30964262. Its totient is φ = 30964260.

The previous prime is 30964253. The next prime is 30964273. The reversal of 30964261 is 16246903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20304036 + 10660225 = 4506^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 30964261 - 2³ = 30964253 is a prime.

It is a super-2 number, since 2×30964261² = 1917570918552242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30964231) 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, 15482130 + 15482131.

It is an arithmetic number, because the mean of its divisors is an integer number (15482131).

Almost surely, 2^30964261 is an apocalyptic number.

It is an amenable number.

30964261 is a deficient number, since it is larger than the sum of its proper divisors (1).

30964261 is an equidigital number, since it uses as much as digits as its factorization.

30964261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30964261 is about 5564.5539803294. The cubic root of 30964261 is about 314.0172985994.

The spelling of 30964261 in words is "thirty million, nine hundred sixty-four thousand, two hundred sixty-one".