1093454581 has 2 divisors, whose sum is σ = 1093454582. Its totient is φ = 1093454580.

The previous prime is 1093454573. The next prime is 1093454587. The reversal of 1093454581 is 1854543901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909987556 + 183467025 = 30166^2 + 13545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1093454581 - 2³ = 1093454573 is a prime.

It is a super-2 number, since 2×1093454581² = 2391285841419771122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093454587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546727290 + 546727291.

It is an arithmetic number, because the mean of its divisors is an integer number (546727291).

Almost surely, 2^1093454581 is an apocalyptic number.

It is an amenable number.

1093454581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093454581 is an equidigital number, since it uses as much as digits as its factorization.

1093454581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1093454581 is about 33067.4247712156. The cubic root of 1093454581 is about 1030.2285542387.

The spelling of 1093454581 in words is "one billion, ninety-three million, four hundred fifty-four thousand, five hundred eighty-one".