1096772581 has 2 divisors, whose sum is σ = 1096772582. Its totient is φ = 1096772580.

The previous prime is 1096772483. The next prime is 1096772609. The reversal of 1096772581 is 1852776901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1030089025 + 66683556 = 32095^2 + 8166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1096772581 is a prime.

It is a super-2 number, since 2×1096772581² = 2405820188866803122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1096772081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548386290 + 548386291.

It is an arithmetic number, because the mean of its divisors is an integer number (548386291).

Almost surely, 2^1096772581 is an apocalyptic number.

It is an amenable number.

1096772581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1096772581 is an equidigital number, since it uses as much as digits as its factorization.

1096772581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 46.

The square root of 1096772581 is about 33117.5569902129. The cubic root of 1096772581 is about 1031.2695505764.

The spelling of 1096772581 in words is "one billion, ninety-six million, seven hundred seventy-two thousand, five hundred eighty-one".