73258139 has 2 divisors, whose sum is σ = 73258140. Its totient is φ = 73258138.

The previous prime is 73258127. The next prime is 73258169. The reversal of 73258139 is 93185237.

It is a weak prime.

It is an emirp because it is prime and its reverse (93185237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73258139 - 2⁸ = 73257883 is a prime.

It is not a weakly prime, because it can be changed into another prime (73258169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36629069 + 36629070.

It is an arithmetic number, because the mean of its divisors is an integer number (36629070).

Almost surely, 2^73258139 is an apocalyptic number.

73258139 is a deficient number, since it is larger than the sum of its proper divisors (1).

73258139 is an equidigital number, since it uses as much as digits as its factorization.

73258139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 73258139 is about 8559.0968565614. The cubic root of 73258139 is about 418.4259658819.

The spelling of 73258139 in words is "seventy-three million, two hundred fifty-eight thousand, one hundred thirty-nine".