1115917 has 8 divisors (see below), whose sum is σ = 1225440. Its totient is φ = 1007760.

The previous prime is 1115911. The next prime is 1115923. The reversal of 1115917 is 7195111.

It is an interprime number because it is at equal distance from previous prime (1115911) and next prime (1115923).

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 1115917 - 2⁷ = 1115789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115891 and 1115900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115911) 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, 2298 + ... + 2740.

It is an arithmetic number, because the mean of its divisors is an integer number (153180).

2^1115917 is an apocalyptic number.

It is an amenable number.

1115917 is a deficient number, since it is larger than the sum of its proper divisors (109523).

1115917 is a wasteful number, since it uses less digits than its factorization.

1115917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its digits is 315, while the sum is 25.

The square root of 1115917 is about 1056.3697269422. The cubic root of 1115917 is about 103.7235322235.

The spelling of 1115917 in words is "one million, one hundred fifteen thousand, nine hundred seventeen".