115139273 has 2 divisors, whose sum is σ = 115139274. Its totient is φ = 115139272.

The previous prime is 115139231. The next prime is 115139279. The reversal of 115139273 is 372931511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113891584 + 1247689 = 10672^2 + 1117^2 .

It is a cyclic number.

It is not a de Polignac number, because 115139273 - 2¹² = 115135177 is a prime.

It is not a weakly prime, because it can be changed into another prime (115139279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57569636 + 57569637.

It is an arithmetic number, because the mean of its divisors is an integer number (57569637).

Almost surely, 2^115139273 is an apocalyptic number.

It is an amenable number.

115139273 is a deficient number, since it is larger than the sum of its proper divisors (1).

115139273 is an equidigital number, since it uses as much as digits as its factorization.

115139273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 32.

The square root of 115139273 is about 10730.2969669996. The cubic root of 115139273 is about 486.4906460346.

The spelling of 115139273 in words is "one hundred fifteen million, one hundred thirty-nine thousand, two hundred seventy-three".