1661014 has 8 divisors (see below), whose sum is σ = 2599920. Its totient is φ = 794376.

The previous prime is 1661003. The next prime is 1661021. The reversal of 1661014 is 4101661.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1660982 and 1661000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18009 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (324990).

2^1661014 is an apocalyptic number.

1661014 is a deficient number, since it is larger than the sum of its proper divisors (938906).

1661014 is a wasteful number, since it uses less digits than its factorization.

1661014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36134.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1661014 is about 1288.8033209144. The cubic root of 1661014 is about 118.4289187792.

Adding to 1661014 its reverse (4101661), we get a palindrome (5762675).

The spelling of 1661014 in words is "one million, six hundred sixty-one thousand, fourteen".