1098023543 has 2 divisors, whose sum is σ = 1098023544. Its totient is φ = 1098023542.

The previous prime is 1098023477. The next prime is 1098023567. The reversal of 1098023543 is 3453208901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1098023543 - 2¹⁶ = 1097958007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1091023543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549011771 + 549011772.

It is an arithmetic number, because the mean of its divisors is an integer number (549011772).

Almost surely, 2^1098023543 is an apocalyptic number.

1098023543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098023543 is an equidigital number, since it uses as much as digits as its factorization.

1098023543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1098023543 is about 33136.4382968357. The cubic root of 1098023543 is about 1031.6614850184.

The spelling of 1098023543 in words is "one billion, ninety-eight million, twenty-three thousand, five hundred forty-three".