30045019 has 2 divisors, whose sum is σ = 30045020. Its totient is φ = 30045018.

The previous prime is 30045007. The next prime is 30045031. The reversal of 30045019 is 91054003.

It is a balanced prime because it is at equal distance from previous prime (30045007) and next prime (30045031).

It is a cyclic number.

It is not a de Polignac number, because 30045019 - 2²¹ = 27947867 is a prime.

It is a super-2 number, since 2×30045019² = 1805406333420722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30045319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15022509 + 15022510.

It is an arithmetic number, because the mean of its divisors is an integer number (15022510).

Almost surely, 2^30045019 is an apocalyptic number.

30045019 is a deficient number, since it is larger than the sum of its proper divisors (1).

30045019 is an equidigital number, since it uses as much as digits as its factorization.

30045019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 30045019 is about 5481.3336880726. Note that the first 3 decimals coincide. The cubic root of 30045019 is about 310.8786001361.

The spelling of 30045019 in words is "thirty million, forty-five thousand, nineteen".