7138417123 has 2 divisors, whose sum is σ = 7138417124. Its totient is φ = 7138417122.

The previous prime is 7138417109. The next prime is 7138417183. The reversal of 7138417123 is 3217148317.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7138417123 - 2⁹ = 7138416611 is a prime.

It is not a weakly prime, because it can be changed into another prime (7138417183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569208561 + 3569208562.

It is an arithmetic number, because the mean of its divisors is an integer number (3569208562).

Almost surely, 2^7138417123 is an apocalyptic number.

7138417123 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138417123 is an equidigital number, since it uses as much as digits as its factorization.

7138417123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 7138417123 is about 84489.1538778795. The cubic root of 7138417123 is about 1925.4576635337.

The spelling of 7138417123 in words is "seven billion, one hundred thirty-eight million, four hundred seventeen thousand, one hundred twenty-three".