9138757 has 2 divisors, whose sum is σ = 9138758. Its totient is φ = 9138756.

The previous prime is 9138749. The next prime is 9138803. The reversal of 9138757 is 7578319.

9138757 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5134756 + 4004001 = 2266^2 + 2001^2 .

It is a cyclic number.

It is not a de Polignac number, because 9138757 - 2³ = 9138749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9130757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4569378 + 4569379.

It is an arithmetic number, because the mean of its divisors is an integer number (4569379).

Almost surely, 2^9138757 is an apocalyptic number.

It is an amenable number.

9138757 is a deficient number, since it is larger than the sum of its proper divisors (1).

9138757 is an equidigital number, since it uses as much as digits as its factorization.

9138757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 9138757 is about 3023.0377106480. The cubic root of 9138757 is about 209.0719210975.

The spelling of 9138757 in words is "nine million, one hundred thirty-eight thousand, seven hundred fifty-seven".