1098542605 has 8 divisors (see below), whose sum is σ = 1320344064. Its totient is φ = 877438800.

The previous prime is 1098542597. The next prime is 1098542623. The reversal of 1098542605 is 5062458901.

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

It is not a de Polignac number, because 1098542605 - 2³ = 1098542597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170941 + ... + 177250.

It is an arithmetic number, because the mean of its divisors is an integer number (165043008).

Almost surely, 2^1098542605 is an apocalyptic number.

It is an amenable number.

1098542605 is a deficient number, since it is larger than the sum of its proper divisors (221801459).

1098542605 is an equidigital number, since it uses as much as digits as its factorization.

1098542605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348827.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1098542605 is about 33144.2695650394. The cubic root of 1098542605 is about 1031.8240230984.

The spelling of 1098542605 in words is "one billion, ninety-eight million, five hundred forty-two thousand, six hundred five".