1081915 has 8 divisors (see below), whose sum is σ = 1307808. Its totient is φ = 859200.

The previous prime is 1081907. The next prime is 1081919. The reversal of 1081915 is 5191801.

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

It is not a de Polignac number, because 1081915 - 2³ = 1081907 is a prime.

It is a Duffinian number.

1081915 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081915.

It is not an unprimeable number, because it can be changed into a prime (1081919) 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, 39 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (163476).

2^1081915 is an apocalyptic number.

1081915 is a deficient number, since it is larger than the sum of its proper divisors (225893).

1081915 is a wasteful number, since it uses less digits than its factorization.

1081915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 1081915 is about 1040.1514312830. The cubic root of 1081915 is about 102.6591618078.

The spelling of 1081915 in words is "one million, eighty-one thousand, nine hundred fifteen".