1098381615 has 16 divisors (see below), whose sum is σ = 1814102016. Its totient is φ = 566906400.

The previous prime is 1098381601. The next prime is 1098381619. The reversal of 1098381615 is 5161838901.

It is not a de Polignac number, because 1098381615 - 2¹¹ = 1098379567 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098381619) 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, 1180591 + ... + 1181520.

It is an arithmetic number, because the mean of its divisors is an integer number (113381376).

Almost surely, 2^1098381615 is an apocalyptic number.

1098381615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1098381615 is a deficient number, since it is larger than the sum of its proper divisors (715720401).

1098381615 is a wasteful number, since it uses less digits than its factorization.

1098381615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362150.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 1098381615 is about 33141.8408511054. The cubic root of 1098381615 is about 1031.7736164766.

The spelling of 1098381615 in words is "one billion, ninety-eight million, three hundred eighty-one thousand, six hundred fifteen".