1081115 has 32 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 658944.

The previous prime is 1081099. The next prime is 1081121. The reversal of 1081115 is 5111801.

It is a cyclic number.

It is not a de Polignac number, because 1081115 - 2⁴ = 1081099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1081093 and 1081102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13646 + ... + 13724.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2^1081115 is an apocalyptic number.

1081115 is a deficient number, since it is larger than the sum of its proper divisors (577765).

1081115 is a wasteful number, since it uses less digits than its factorization.

1081115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131.

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 1081115 is about 1039.7668007779. The cubic root of 1081115 is about 102.6338524936.

Adding to 1081115 its reverse (5111801), we get a palindrome (6192916).

It can be divided in two parts, 10811 and 15, that multiplied together give a triangular number (162165 = T₅₆₉).

The spelling of 1081115 in words is "one million, eighty-one thousand, one hundred fifteen".