2030381 has 2 divisors, whose sum is σ = 2030382. Its totient is φ = 2030380.

The previous prime is 2030363. The next prime is 2030383. The reversal of 2030381 is 1830302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 885481 = 1070^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030381 - 2⁶ = 2030317 is a prime.

It is a super-2 number, since 2×2030381² = 8244894010322, which contains 22 as substring.

Together with 2030383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015190 + 1015191.

It is an arithmetic number, because the mean of its divisors is an integer number (1015191).

2^2030381 is an apocalyptic number.

It is an amenable number.

2030381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030381 is an equidigital number, since it uses as much as digits as its factorization.

2030381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2030381 is about 1424.9143833929. The cubic root of 2030381 is about 126.6268626856.

Adding to 2030381 its reverse (1830302), we get a palindrome (3860683).

The spelling of 2030381 in words is "two million, thirty thousand, three hundred eighty-one".