1120815 has 12 divisors (see below), whose sum is σ = 1942824. Its totient is φ = 597744.

The previous prime is 1120811. The next prime is 1120831. The reversal of 1120815 is 5180211.

It is not a de Polignac number, because 1120815 - 2² = 1120811 is a prime.

1120815 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12409 + ... + 12498.

It is an arithmetic number, because the mean of its divisors is an integer number (161902).

2^1120815 is an apocalyptic number.

1120815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1120815 is a deficient number, since it is larger than the sum of its proper divisors (822009).

1120815 is a wasteful number, since it uses less digits than its factorization.

1120815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24918 (or 24915 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1120815 is about 1058.6855057098. The cubic root of 1120815 is about 103.8750657074.

The spelling of 1120815 in words is "one million, one hundred twenty thousand, eight hundred fifteen".