30149641 has 2 divisors, whose sum is σ = 30149642. Its totient is φ = 30149640.

The previous prime is 30149629. The next prime is 30149659. The reversal of 30149641 is 14694103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 4748041 = 5040^2 + 2179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30149641 is a prime.

It is not a weakly prime, because it can be changed into another prime (30149671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15074820 + 15074821.

It is an arithmetic number, because the mean of its divisors is an integer number (15074821).

Almost surely, 2^30149641 is an apocalyptic number.

It is an amenable number.

30149641 is a deficient number, since it is larger than the sum of its proper divisors (1).

30149641 is an equidigital number, since it uses as much as digits as its factorization.

30149641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30149641 is about 5490.8688747775. The cubic root of 30149641 is about 311.2390266181.

The spelling of 30149641 in words is "thirty million, one hundred forty-nine thousand, six hundred forty-one".