30123089 has 2 divisors, whose sum is σ = 30123090. Its totient is φ = 30123088.

The previous prime is 30123061. The next prime is 30123097. The reversal of 30123089 is 98032103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27667600 + 2455489 = 5260^2 + 1567^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123089 - 2¹² = 30118993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30123019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061544 + 15061545.

It is an arithmetic number, because the mean of its divisors is an integer number (15061545).

Almost surely, 2^30123089 is an apocalyptic number.

It is an amenable number.

30123089 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123089 is an equidigital number, since it uses as much as digits as its factorization.

30123089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30123089 is about 5488.4505099345. The cubic root of 30123089 is about 311.1476330943.

The spelling of 30123089 in words is "thirty million, one hundred twenty-three thousand, eighty-nine".