1115020545 has 8 divisors (see below), whose sum is σ = 1784032896. Its totient is φ = 594677616.

The previous prime is 1115020541. The next prime is 1115020553. The reversal of 1115020545 is 5450205111.

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

It is not a de Polignac number, because 1115020545 - 2² = 1115020541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115020541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37167337 + ... + 37167366.

It is an arithmetic number, because the mean of its divisors is an integer number (223004112).

Almost surely, 2^1115020545 is an apocalyptic number.

1115020545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115020545 is a deficient number, since it is larger than the sum of its proper divisors (669012351).

1115020545 is an equidigital number, since it uses as much as digits as its factorization.

1115020545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74334711.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1115020545 is about 33391.9233498162. The cubic root of 1115020545 is about 1036.9574987378.

Adding to 1115020545 its reverse (5450205111), we get a palindrome (6565225656).

The spelling of 1115020545 in words is "one billion, one hundred fifteen million, twenty thousand, five hundred forty-five".