7138934065 has 8 divisors (see below), whose sum is σ = 8568924840. Its totient is φ = 5709677952.

The previous prime is 7138934039. The next prime is 7138934069. The reversal of 7138934065 is 5604398317.

It can be written as a sum of positive squares in 4 ways, for example, as 134583201 + 7004350864 = 11601^2 + 83692^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7138934065 - 2¹³ = 7138925873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7138934069) 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 in 7 ways as a sum of consecutive naturals, for example, 162054 + ... + 201343.

It is an arithmetic number, because the mean of its divisors is an integer number (1071115605).

Almost surely, 2^7138934065 is an apocalyptic number.

It is an amenable number.

7138934065 is a deficient number, since it is larger than the sum of its proper divisors (1429990775).

7138934065 is a wasteful number, since it uses less digits than its factorization.

7138934065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367331.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 7138934065 is about 84492.2130435699. The cubic root of 7138934065 is about 1925.5041409667.

The spelling of 7138934065 in words is "seven billion, one hundred thirty-eight million, nine hundred thirty-four thousand, sixty-five".