30119989 has 2 divisors, whose sum is σ = 30119990. Its totient is φ = 30119988.

The previous prime is 30119963. The next prime is 30120011. The reversal of 30119989 is 98991103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 8076964 = 4695^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 30119989 - 2⁹ = 30119477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30129989) 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, 15059994 + 15059995.

It is an arithmetic number, because the mean of its divisors is an integer number (15059995).

Almost surely, 2^30119989 is an apocalyptic number.

It is an amenable number.

30119989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30119989 is an equidigital number, since it uses as much as digits as its factorization.

30119989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 30119989 is about 5488.1680914491. The cubic root of 30119989 is about 311.1369592139.

The spelling of 30119989 in words is "thirty million, one hundred nineteen thousand, nine hundred eighty-nine".