6158681 has 2 divisors, whose sum is σ = 6158682. Its totient is φ = 6158680.

The previous prime is 6158563. The next prime is 6158689. The reversal of 6158681 is 1868516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6150400 + 8281 = 2480^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 6158681 - 2¹⁸ = 5896537 is a prime.

It is a super-2 number, since 2×6158681² = 75858703319522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6158689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3079340 + 3079341.

It is an arithmetic number, because the mean of its divisors is an integer number (3079341).

Almost surely, 2^6158681 is an apocalyptic number.

It is an amenable number.

6158681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6158681 is an equidigital number, since it uses as much as digits as its factorization.

6158681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 35.

The square root of 6158681 is about 2481.6689948500. The cubic root of 6158681 is about 183.3000442772.

The spelling of 6158681 in words is "six million, one hundred fifty-eight thousand, six hundred eighty-one".