1103459561 has 24 divisors (see below), whose sum is σ = 1209029760. Its totient is φ = 1004032800.

The previous prime is 1103459557. The next prime is 1103459587. The reversal of 1103459561 is 1659543011.

It is not a de Polignac number, because 1103459561 - 2² = 1103459557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1103459501) 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, 2560016 + ... + 2560446.

It is an arithmetic number, because the mean of its divisors is an integer number (50376240).

Almost surely, 2^1103459561 is an apocalyptic number.

It is an amenable number.

1103459561 is a deficient number, since it is larger than the sum of its proper divisors (105570199).

1103459561 is an equidigital number, since it uses as much as digits as its factorization.

1103459561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1103459561 is about 33218.3618048813. The cubic root of 1103459561 is about 1033.3611756517.

The spelling of 1103459561 in words is "one billion, one hundred three million, four hundred fifty-nine thousand, five hundred sixty-one".