1051606789 has 2 divisors, whose sum is σ = 1051606790. Its totient is φ = 1051606788.

The previous prime is 1051606771. The next prime is 1051606819. The reversal of 1051606789 is 9876061501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849256164 + 202350625 = 29142^2 + 14225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051606789 - 2¹⁷ = 1051475717 is a prime.

It is a super-2 number, since 2×1051606789² = 2211753677341781042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051606709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525803394 + 525803395.

It is an arithmetic number, because the mean of its divisors is an integer number (525803395).

Almost surely, 2^1051606789 is an apocalyptic number.

It is an amenable number.

1051606789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051606789 is an equidigital number, since it uses as much as digits as its factorization.

1051606789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 1051606789 is about 32428.4873066876. The cubic root of 1051606789 is about 1016.9145479719.

The spelling of 1051606789 in words is "one billion, fifty-one million, six hundred six thousand, seven hundred eighty-nine".