2037942581 has 2 divisors, whose sum is σ = 2037942582. Its totient is φ = 2037942580.

The previous prime is 2037942547. The next prime is 2037942587. The reversal of 2037942581 is 1852497302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1487336356 + 550606225 = 38566^2 + 23465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2037942581 is a prime.

It is a super-2 number, since 2×2037942581² = 8306419926905883122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2037942587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018971290 + 1018971291.

It is an arithmetic number, because the mean of its divisors is an integer number (1018971291).

Almost surely, 2^2037942581 is an apocalyptic number.

It is an amenable number.

2037942581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2037942581 is an equidigital number, since it uses as much as digits as its factorization.

2037942581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 2037942581 is about 45143.5774058725. The cubic root of 2037942581 is about 1267.8386328252.

The spelling of 2037942581 in words is "two billion, thirty-seven million, nine hundred forty-two thousand, five hundred eighty-one".