1973041181 has 2 divisors, whose sum is σ = 1973041182. Its totient is φ = 1973041180.

The previous prime is 1973041121. The next prime is 1973041211. The reversal of 1973041181 is 1811403791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1966124281 + 6916900 = 44341^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 1973041181 - 2¹⁸ = 1972779037 is a prime.

It is a super-2 number, since 2×1973041181² = 7785783003843749522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973041121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986520590 + 986520591.

It is an arithmetic number, because the mean of its divisors is an integer number (986520591).

Almost surely, 2^1973041181 is an apocalyptic number.

It is an amenable number.

1973041181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973041181 is an equidigital number, since it uses as much as digits as its factorization.

1973041181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 1973041181 is about 44418.9281838272. The cubic root of 1973041181 is about 1254.2344248000.

The spelling of 1973041181 in words is "one billion, nine hundred seventy-three million, forty-one thousand, one hundred eighty-one".