1957443041 has 2 divisors, whose sum is σ = 1957443042. Its totient is φ = 1957443040.

The previous prime is 1957443031. The next prime is 1957443043. The reversal of 1957443041 is 1403447591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1729312225 + 228130816 = 41585^2 + 15104^2 .

It is a cyclic number.

It is not a de Polignac number, because 1957443041 - 2¹⁰ = 1957442017 is a prime.

It is a Sophie Germain prime.

Together with 1957443043, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1957442986 and 1957443004.

It is not a weakly prime, because it can be changed into another prime (1957443043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978721520 + 978721521.

It is an arithmetic number, because the mean of its divisors is an integer number (978721521).

Almost surely, 2^1957443041 is an apocalyptic number.

It is an amenable number.

1957443041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957443041 is an equidigital number, since it uses as much as digits as its factorization.

1957443041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1957443041 is about 44242.9999095902. Note that the first 4 decimals coincide. The cubic root of 1957443041 is about 1250.9205040514.

The spelling of 1957443041 in words is "one billion, nine hundred fifty-seven million, four hundred forty-three thousand, forty-one".