30145613 has 2 divisors, whose sum is σ = 30145614. Its totient is φ = 30145612.

The previous prime is 30145603. The next prime is 30145627. The reversal of 30145613 is 31654103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23785129 + 6360484 = 4877^2 + 2522^2 .

It is a cyclic number.

It is not a de Polignac number, because 30145613 - 2⁴ = 30145597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30145603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15072806 + 15072807.

It is an arithmetic number, because the mean of its divisors is an integer number (15072807).

Almost surely, 2^30145613 is an apocalyptic number.

It is an amenable number.

30145613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30145613 is an equidigital number, since it uses as much as digits as its factorization.

30145613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30145613 is about 5490.5020717599. The cubic root of 30145613 is about 311.2251654620.

Adding to 30145613 its reverse (31654103), we get a palindrome (61799716).

The spelling of 30145613 in words is "thirty million, one hundred forty-five thousand, six hundred thirteen".