93030139 has 2 divisors, whose sum is σ = 93030140. Its totient is φ = 93030138.

The previous prime is 93030121. The next prime is 93030181. The reversal of 93030139 is 93103039.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93030139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (93030109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46515069 + 46515070.

It is an arithmetic number, because the mean of its divisors is an integer number (46515070).

Almost surely, 2^93030139 is an apocalyptic number.

93030139 is a deficient number, since it is larger than the sum of its proper divisors (1).

93030139 is an equidigital number, since it uses as much as digits as its factorization.

93030139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 93030139 is about 9645.2132687671. The cubic root of 93030139 is about 453.1144267624.

Subtracting 93030139 from its reverse (93103039), we obtain a square (72900 = 270²).

The spelling of 93030139 in words is "ninety-three million, thirty thousand, one hundred thirty-nine".