1664162 has 4 divisors (see below), whose sum is σ = 2496246. Its totient is φ = 832080.

The previous prime is 1664123. The next prime is 1664227. The reversal of 1664162 is 2614661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1229881 + 434281 = 1109^2 + 659^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416039 + ... + 416042.

2^1664162 is an apocalyptic number.

1664162 is a deficient number, since it is larger than the sum of its proper divisors (832084).

1664162 is an equidigital number, since it uses as much as digits as its factorization.

1664162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832083.

The product of its digits is 1728, while the sum is 26.

The square root of 1664162 is about 1290.0240307839. The cubic root of 1664162 is about 118.5036881593.

The spelling of 1664162 in words is "one million, six hundred sixty-four thousand, one hundred sixty-two".