1662115 has 24 divisors (see below), whose sum is σ = 2477088. Its totient is φ = 1048320.

The previous prime is 1662103. The next prime is 1662119. The reversal of 1662115 is 5112661.

It is not a de Polignac number, because 1662115 - 2⁵ = 1662083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5775 + ... + 6055.

It is an arithmetic number, because the mean of its divisors is an integer number (103212).

2^1662115 is an apocalyptic number.

1662115 is a deficient number, since it is larger than the sum of its proper divisors (814973).

1662115 is a wasteful number, since it uses less digits than its factorization.

1662115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 306 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1662115 is about 1289.2303905819. The cubic root of 1662115 is about 118.4550797950.

Adding to 1662115 its reverse (5112661), we get a palindrome (6774776).

The spelling of 1662115 in words is "one million, six hundred sixty-two thousand, one hundred fifteen".