3056381 has 2 divisors, whose sum is σ = 3056382. Its totient is φ = 3056380.

The previous prime is 3056371. The next prime is 3056387. The reversal of 3056381 is 1836503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2839225 + 217156 = 1685^2 + 466^2 .

It is a cyclic number.

It is not a de Polignac number, because 3056381 - 2¹⁰ = 3055357 is a prime.

It is a super-2 number, since 2×3056381² = 18682929634322, which contains 22 as substring.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3056381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3056387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1528190 + 1528191.

It is an arithmetic number, because the mean of its divisors is an integer number (1528191).

Almost surely, 2^3056381 is an apocalyptic number.

It is an amenable number.

3056381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3056381 is an equidigital number, since it uses as much as digits as its factorization.

3056381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3056381 is about 1748.2508401256. The cubic root of 3056381 is about 145.1228605936.

The spelling of 3056381 in words is "three million, fifty-six thousand, three hundred eighty-one".