2030981 has 2 divisors, whose sum is σ = 2030982. Its totient is φ = 2030980.

The previous prime is 2030953. The next prime is 2030999. The reversal of 2030981 is 1890302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 96100 = 1391^2 + 310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2030981 is a prime.

It is a super-2 number, since 2×2030981² = 8249767644722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015490 + 1015491.

It is an arithmetic number, because the mean of its divisors is an integer number (1015491).

2^2030981 is an apocalyptic number.

It is an amenable number.

2030981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030981 is an equidigital number, since it uses as much as digits as its factorization.

2030981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2030981 is about 1425.1249068064. The cubic root of 2030981 is about 126.6393346691.

The spelling of 2030981 in words is "two million, thirty thousand, nine hundred eighty-one".