6168881 has 2 divisors, whose sum is σ = 6168882. Its totient is φ = 6168880.

The previous prime is 6168821. The next prime is 6168893. The reversal of 6168881 is 1888616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5856400 + 312481 = 2420^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 6168881 - 2¹⁸ = 5906737 is a prime.

It is a super-2 number, since 2×6168881² = 76110185584322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6168821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3084440 + 3084441.

It is an arithmetic number, because the mean of its divisors is an integer number (3084441).

Almost surely, 2^6168881 is an apocalyptic number.

It is an amenable number.

6168881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6168881 is an equidigital number, since it uses as much as digits as its factorization.

6168881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 38.

The square root of 6168881 is about 2483.7232132426. The cubic root of 6168881 is about 183.4011822332.

The spelling of 6168881 in words is "six million, one hundred sixty-eight thousand, eight hundred eighty-one".