1100720485 has 8 divisors (see below), whose sum is σ = 1321176600. Its totient is φ = 880368384.

The previous prime is 1100720479. The next prime is 1100720497. The reversal of 1100720485 is 5840270011.

It can be written as a sum of positive squares in 4 ways, for example, as 152942689 + 947777796 = 12367^2 + 30786^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100720485 is a prime.

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, 432 + ... + 46921.

It is an arithmetic number, because the mean of its divisors is an integer number (165147075).

Almost surely, 2^1100720485 is an apocalyptic number.

It is an amenable number.

1100720485 is a deficient number, since it is larger than the sum of its proper divisors (220456115).

1100720485 is an equidigital number, since it uses as much as digits as its factorization.

1100720485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52007.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 1100720485 is about 33177.1078456215. The cubic root of 1100720485 is about 1032.5054427345.

Adding to 1100720485 its reverse (5840270011), we get a palindrome (6940990496).

The spelling of 1100720485 in words is "one billion, one hundred million, seven hundred twenty thousand, four hundred eighty-five".