1963209041 has 8 divisors (see below), whose sum is σ = 1979463720. Its totient is φ = 1946982528.

The previous prime is 1963209037. The next prime is 1963209049. The reversal of 1963209041 is 1409023691.

It can be written as a sum of positive squares in 4 ways, for example, as 173580625 + 1789628416 = 13175^2 + 42304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1963209041 - 2² = 1963209037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1963208992 and 1963209010.

It is not an unprimeable number, because it can be changed into a prime (1963209049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146615 + ... + 159443.

It is an arithmetic number, because the mean of its divisors is an integer number (247432965).

Almost surely, 2^1963209041 is an apocalyptic number.

It is an amenable number.

1963209041 is a deficient number, since it is larger than the sum of its proper divisors (16254679).

1963209041 is a wasteful number, since it uses less digits than its factorization.

1963209041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14083.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1963209041 is about 44308.1148436717. The cubic root of 1963209041 is about 1252.1475703204.

The spelling of 1963209041 in words is "one billion, nine hundred sixty-three million, two hundred nine thousand, forty-one".