1098540063 has 24 divisors (see below), whose sum is σ = 1676617488. Its totient is φ = 718533504.

The previous prime is 1098540059. The next prime is 1098540067. The reversal of 1098540063 is 3600458901.

1098540063 is a `hidden beast` number, since 109 + 8 + 540 + 0 + 6 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1098540059) and next prime (1098540067).

It is not a de Polignac number, because 1098540063 - 2² = 1098540059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098540067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29770 + ... + 55527.

It is an arithmetic number, because the mean of its divisors is an integer number (69859062).

Almost surely, 2^1098540063 is an apocalyptic number.

1098540063 is a deficient number, since it is larger than the sum of its proper divisors (578077425).

1098540063 is an frugal number, since it uses more digits than its factorization.

1098540063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85365 (or 85353 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1098540063 is about 33144.2312175136. The cubic root of 1098540063 is about 1031.8232272261.

Adding to 1098540063 its reverse (3600458901), we get a palindrome (4698998964).

The spelling of 1098540063 in words is "one billion, ninety-eight million, five hundred forty thousand, sixty-three".