9138351407 has 2 divisors, whose sum is σ = 9138351408. Its totient is φ = 9138351406.

The previous prime is 9138351367. The next prime is 9138351413. The reversal of 9138351407 is 7041538319.

It is a strong prime.

It is an emirp because it is prime and its reverse (7041538319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9138351407 - 2²⁴ = 9121574191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9138351437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4569175703 + 4569175704.

It is an arithmetic number, because the mean of its divisors is an integer number (4569175704).

Almost surely, 2^9138351407 is an apocalyptic number.

9138351407 is a deficient number, since it is larger than the sum of its proper divisors (1).

9138351407 is an equidigital number, since it uses as much as digits as its factorization.

9138351407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 9138351407 is about 95594.7247864651. The cubic root of 9138351407 is about 2090.6882806701.

The spelling of 9138351407 in words is "nine billion, one hundred thirty-eight million, three hundred fifty-one thousand, four hundred seven".