1850041549 has 2 divisors, whose sum is σ = 1850041550. Its totient is φ = 1850041548.

The previous prime is 1850041519. The next prime is 1850041577. The reversal of 1850041549 is 9451400581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849430025 + 611524 = 43005^2 + 782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850041549 - 2⁵ = 1850041517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1850041519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925020774 + 925020775.

It is an arithmetic number, because the mean of its divisors is an integer number (925020775).

Almost surely, 2^1850041549 is an apocalyptic number.

It is an amenable number.

1850041549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850041549 is an equidigital number, since it uses as much as digits as its factorization.

1850041549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 1850041549 is about 43012.1093298155. The cubic root of 1850041549 is about 1227.6102163207.

The spelling of 1850041549 in words is "one billion, eight hundred fifty million, forty-one thousand, five hundred forty-nine".