7139379173 has 2 divisors, whose sum is σ = 7139379174. Its totient is φ = 7139379172.

The previous prime is 7139379131. The next prime is 7139379179. The reversal of 7139379173 is 3719739317.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6853025089 + 286354084 = 82783^2 + 16922^2 .

It is a cyclic number.

It is not a de Polignac number, because 7139379173 - 2²⁰ = 7138330597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7139379179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569689586 + 3569689587.

It is an arithmetic number, because the mean of its divisors is an integer number (3569689587).

Almost surely, 2^7139379173 is an apocalyptic number.

It is an amenable number.

7139379173 is a deficient number, since it is larger than the sum of its proper divisors (1).

7139379173 is an equidigital number, since it uses as much as digits as its factorization.

7139379173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 750141, while the sum is 50.

The square root of 7139379173 is about 84494.8470203953. The cubic root of 7139379173 is about 1925.5441581213.

The spelling of 7139379173 in words is "seven billion, one hundred thirty-nine million, three hundred seventy-nine thousand, one hundred seventy-three".