1107248561 has 4 divisors (see below), whose sum is σ = 1107348324. Its totient is φ = 1107148800.

The previous prime is 1107248491. The next prime is 1107248591. The reversal of 1107248561 is 1658427011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1067002225 + 40246336 = 32665^2 + 6344^2 .

It is a cyclic number.

It is not a de Polignac number, because 1107248561 - 2²² = 1103054257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1107248591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30800 + ... + 56241.

It is an arithmetic number, because the mean of its divisors is an integer number (276837081).

Almost surely, 2^1107248561 is an apocalyptic number.

It is an amenable number.

1107248561 is a deficient number, since it is larger than the sum of its proper divisors (99763).

1107248561 is an equidigital number, since it uses as much as digits as its factorization.

1107248561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99762.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1107248561 is about 33275.3446413407. The cubic root of 1107248561 is about 1034.5425911016.

The spelling of 1107248561 in words is "one billion, one hundred seven million, two hundred forty-eight thousand, five hundred sixty-one".