1098120255 has 16 divisors (see below), whose sum is σ = 1758741120. Its totient is φ = 585081248.

The previous prime is 1098120227. The next prime is 1098120259. The reversal of 1098120255 is 5520218901.

It is a cyclic number.

It is not a de Polignac number, because 1098120255 - 2⁸ = 1098119999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098120259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20637 + ... + 51206.

It is an arithmetic number, because the mean of its divisors is an integer number (109921320).

Almost surely, 2^1098120255 is an apocalyptic number.

1098120255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1098120255 is a deficient number, since it is larger than the sum of its proper divisors (660620865).

1098120255 is a wasteful number, since it uses less digits than its factorization.

1098120255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72870.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 1098120255 is about 33137.8975645710. The cubic root of 1098120255 is about 1031.6917731111.

The spelling of 1098120255 in words is "one billion, ninety-eight million, one hundred twenty thousand, two hundred fifty-five".