1115254720 has 28 divisors (see below), whose sum is σ = 2655701064. Its totient is φ = 446101760.

The previous prime is 1115254717. The next prime is 1115254727. The reversal of 1115254720 is 274525111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115254727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742266 + ... + 1742905.

Almost surely, 2^1115254720 is an apocalyptic number.

1115254720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115254720 is an abundant number, since it is smaller than the sum of its proper divisors (1540446344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115254720 is an equidigital number, since it uses as much as digits as its factorization.

1115254720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485188 (or 3485178 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1115254720 is about 33395.4296274206. The cubic root of 1115254720 is about 1037.0300870938.

Adding to 1115254720 its reverse (274525111), we get a palindrome (1389779831).

The spelling of 1115254720 in words is "one billion, one hundred fifteen million, two hundred fifty-four thousand, seven hundred twenty".