30245519 has 2 divisors, whose sum is σ = 30245520. Its totient is φ = 30245518.

The previous prime is 30245513. The next prime is 30245531. The reversal of 30245519 is 91554203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30245519 - 2¹² = 30241423 is a prime.

It is a super-2 number, since 2×30245519² = 1829582839158722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30245491 and 30245500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30245513) 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, 15122759 + 15122760.

It is an arithmetic number, because the mean of its divisors is an integer number (15122760).

Almost surely, 2^30245519 is an apocalyptic number.

30245519 is a deficient number, since it is larger than the sum of its proper divisors (1).

30245519 is an equidigital number, since it uses as much as digits as its factorization.

30245519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 30245519 is about 5499.5926212766. The cubic root of 30245519 is about 311.5685982485.

The spelling of 30245519 in words is "thirty million, two hundred forty-five thousand, five hundred nineteen".