1098163645 has 8 divisors (see below), whose sum is σ = 1319235840. Its totient is φ = 877571280.

The previous prime is 1098163643. The next prime is 1098163679. The reversal of 1098163645 is 5463618901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1098163645 - 2¹ = 1098163643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098163643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114901 + ... + 124090.

It is an arithmetic number, because the mean of its divisors is an integer number (164904480).

Almost surely, 2^1098163645 is an apocalyptic number.

It is an amenable number.

1098163645 is a deficient number, since it is larger than the sum of its proper divisors (221072195).

1098163645 is an equidigital number, since it uses as much as digits as its factorization.

1098163645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239915.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1098163645 is about 33138.5522465904. The cubic root of 1098163645 is about 1031.7053613364.

The spelling of 1098163645 in words is "one billion, ninety-eight million, one hundred sixty-three thousand, six hundred forty-five".