30111139 has 2 divisors, whose sum is σ = 30111140. Its totient is φ = 30111138.

The previous prime is 30111121. The next prime is 30111149. The reversal of 30111139 is 93111103.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30111139 - 2⁹ = 30110627 is a prime.

It is not a weakly prime, because it can be changed into another prime (30111149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055569 + 15055570.

It is an arithmetic number, because the mean of its divisors is an integer number (15055570).

Almost surely, 2^30111139 is an apocalyptic number.

30111139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30111139 is an equidigital number, since it uses as much as digits as its factorization.

30111139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 30111139 is about 5487.3617522449. The cubic root of 30111139 is about 311.1064829763.

The spelling of 30111139 in words is "thirty million, one hundred eleven thousand, one hundred thirty-nine".