1121915 has 16 divisors (see below), whose sum is σ = 1454112. Its totient is φ = 827904.

The previous prime is 1121899. The next prime is 1121933. The reversal of 1121915 is 5191211.

It is a cyclic number.

It is not a de Polignac number, because 1121915 - 2⁴ = 1121899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5597 + ... + 5793.

It is an arithmetic number, because the mean of its divisors is an integer number (90882).

2^1121915 is an apocalyptic number.

1121915 is a deficient number, since it is larger than the sum of its proper divisors (332197).

1121915 is a wasteful number, since it uses less digits than its factorization.

1121915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286.

The product of its digits is 90, while the sum is 20.

The square root of 1121915 is about 1059.2048904721. The cubic root of 1121915 is about 103.9090365865.

The spelling of 1121915 in words is "one million, one hundred twenty-one thousand, nine hundred fifteen".