1765561041 has 6 divisors (see below), whose sum is σ = 2550254850. Its totient is φ = 1177040688.

The previous prime is 1765561013. The next prime is 1765561067. The reversal of 1765561041 is 1401655671.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1708995600 + 56565441 = 41340^2 + 7521^2 .

It is not a de Polignac number, because 1765561041 - 2⁵ = 1765561009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1765560987 and 1765561005.

It is not an unprimeable number, because it can be changed into a prime (1765561001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98086716 + ... + 98086733.

It is an arithmetic number, because the mean of its divisors is an integer number (425042475).

Almost surely, 2^1765561041 is an apocalyptic number.

It is an amenable number.

1765561041 is a deficient number, since it is larger than the sum of its proper divisors (784693809).

1765561041 is a wasteful number, since it uses less digits than its factorization.

1765561041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196173455 (or 196173452 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1765561041 is about 42018.5797118370. The cubic root of 1765561041 is about 1208.6324373635.

The spelling of 1765561041 in words is "one billion, seven hundred sixty-five million, five hundred sixty-one thousand, forty-one".