6138557 has 2 divisors, whose sum is σ = 6138558. Its totient is φ = 6138556.

The previous prime is 6138523. The next prime is 6138563. The reversal of 6138557 is 7558316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5635876 + 502681 = 2374^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 6138557 - 2¹⁰ = 6137533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6137557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069278 + 3069279.

It is an arithmetic number, because the mean of its divisors is an integer number (3069279).

Almost surely, 2^6138557 is an apocalyptic number.

It is an amenable number.

6138557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6138557 is an equidigital number, since it uses as much as digits as its factorization.

6138557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 6138557 is about 2477.6111478600. The cubic root of 6138557 is about 183.1001770684.

The spelling of 6138557 in words is "six million, one hundred thirty-eight thousand, five hundred fifty-seven".