30061243 has 2 divisors, whose sum is σ = 30061244. Its totient is φ = 30061242.

The previous prime is 30061223. The next prime is 30061259. The reversal of 30061243 is 34216003.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30061243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30061243.

It is not a weakly prime, because it can be changed into another prime (30061223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15030621 + 15030622.

It is an arithmetic number, because the mean of its divisors is an integer number (15030622).

Almost surely, 2^30061243 is an apocalyptic number.

30061243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30061243 is an equidigital number, since it uses as much as digits as its factorization.

30061243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30061243 is about 5482.8134201339. The cubic root of 30061243 is about 310.9345471450.

Adding to 30061243 its reverse (34216003), we get a palindrome (64277246).

The spelling of 30061243 in words is "thirty million, sixty-one thousand, two hundred forty-three".