30294991 has 2 divisors, whose sum is σ = 30294992. Its totient is φ = 30294990.

The previous prime is 30294989. The next prime is 30295007. The reversal of 30294991 is 19949203.

It is a weak prime.

It is an emirp because it is prime and its reverse (19949203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30294991 - 2¹ = 30294989 is a prime.

Together with 30294989, it forms a pair of twin primes.

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 30294991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30294191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15147495 + 15147496.

It is an arithmetic number, because the mean of its divisors is an integer number (15147496).

Almost surely, 2^30294991 is an apocalyptic number.

30294991 is a deficient number, since it is larger than the sum of its proper divisors (1).

30294991 is an equidigital number, since it uses as much as digits as its factorization.

30294991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 30294991 is about 5504.0885712350. The cubic root of 30294991 is about 311.7383812527.

The spelling of 30294991 in words is "thirty million, two hundred ninety-four thousand, nine hundred ninety-one".