93975139 has 2 divisors, whose sum is σ = 93975140. Its totient is φ = 93975138.

The previous prime is 93975131. The next prime is 93975151. The reversal of 93975139 is 93157939.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 93975139 - 2³ = 93975131 is a prime.

It is not a weakly prime, because it can be changed into another prime (93975131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46987569 + 46987570.

It is an arithmetic number, because the mean of its divisors is an integer number (46987570).

Almost surely, 2^93975139 is an apocalyptic number.

93975139 is a deficient number, since it is larger than the sum of its proper divisors (1).

93975139 is an equidigital number, since it uses as much as digits as its factorization.

93975139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 229635, while the sum is 46.

The square root of 93975139 is about 9694.0775218687. The cubic root of 93975139 is about 454.6435061311.

The spelling of 93975139 in words is "ninety-three million, nine hundred seventy-five thousand, one hundred thirty-nine".