1115445 has 8 divisors (see below), whose sum is σ = 1784736. Its totient is φ = 594896.

The previous prime is 1115419. The next prime is 1115447. The reversal of 1115445 is 5445111.

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

It is a cyclic number.

It is not a de Polignac number, because 1115445 - 2⁶ = 1115381 is a prime.

1115445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115447) 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, 37167 + ... + 37196.

It is an arithmetic number, because the mean of its divisors is an integer number (223092).

2^1115445 is an apocalyptic number.

1115445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115445 is a deficient number, since it is larger than the sum of its proper divisors (669291).

1115445 is an equidigital number, since it uses as much as digits as its factorization.

1115445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74371.

The product of its digits is 400, while the sum is 21.

The square root of 1115445 is about 1056.1462966843. The cubic root of 1115445 is about 103.7089061622.

The spelling of 1115445 in words is "one million, one hundred fifteen thousand, four hundred forty-five".