30189013 has 2 divisors, whose sum is σ = 30189014. Its totient is φ = 30189012.

The previous prime is 30189007. The next prime is 30189017. The reversal of 30189013 is 31098103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27857284 + 2331729 = 5278^2 + 1527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30189013 is a prime.

It is a super-2 number, since 2×30189013² = 1822753011828338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30189017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15094506 + 15094507.

It is an arithmetic number, because the mean of its divisors is an integer number (15094507).

Almost surely, 2^30189013 is an apocalyptic number.

It is an amenable number.

30189013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30189013 is an equidigital number, since it uses as much as digits as its factorization.

30189013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 30189013 is about 5494.4529300013. The cubic root of 30189013 is about 311.3744486028.

The spelling of 30189013 in words is "thirty million, one hundred eighty-nine thousand, thirteen".