93139139 has 2 divisors, whose sum is σ = 93139140. Its totient is φ = 93139138.

The previous prime is 93139129. The next prime is 93139153. The reversal of 93139139 is 93193139.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 93139139 - 2¹² = 93135043 is a prime.

It is a super-2 number, since 2×93139139² = 17349798427322642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (93139129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46569569 + 46569570.

It is an arithmetic number, because the mean of its divisors is an integer number (46569570).

Almost surely, 2^93139139 is an apocalyptic number.

93139139 is a deficient number, since it is larger than the sum of its proper divisors (1).

93139139 is an equidigital number, since it uses as much as digits as its factorization.

93139139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19683, while the sum is 38.

The square root of 93139139 is about 9650.8620858450. The cubic root of 93139139 is about 453.2913235413.

The spelling of 93139139 in words is "ninety-three million, one hundred thirty-nine thousand, one hundred thirty-nine".