1050809761 has 2 divisors, whose sum is σ = 1050809762. Its totient is φ = 1050809760.

The previous prime is 1050809741. The next prime is 1050809777. The reversal of 1050809761 is 1679080501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 731973025 + 318836736 = 27055^2 + 17856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1050809761 is a prime.

It is a super-2 number, since 2×1050809761² = 2208402307625754242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1050809761.

It is not a weakly prime, because it can be changed into another prime (1050809701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525404880 + 525404881.

It is an arithmetic number, because the mean of its divisors is an integer number (525404881).

Almost surely, 2^1050809761 is an apocalyptic number.

It is an amenable number.

1050809761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050809761 is an equidigital number, since it uses as much as digits as its factorization.

1050809761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1050809761 is about 32416.1959674481. The cubic root of 1050809761 is about 1016.6575716228.

The spelling of 1050809761 in words is "one billion, fifty million, eight hundred nine thousand, seven hundred sixty-one".