1662141 has 32 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 912384.

The previous prime is 1662121. The next prime is 1662149. The reversal of 1662141 is 1412661.

It is not a de Polignac number, because 1662141 - 2⁷ = 1662013 is a prime.

It is a Curzon number.

1662141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15195 + ... + 15303.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2^1662141 is an apocalyptic number.

It is an amenable number.

1662141 is a deficient number, since it is larger than the sum of its proper divisors (998979).

1662141 is a wasteful number, since it uses less digits than its factorization.

1662141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165.

The product of its digits is 288, while the sum is 21.

The square root of 1662141 is about 1289.2404740777. The cubic root of 1662141 is about 118.4556974450.

The spelling of 1662141 in words is "one million, six hundred sixty-two thousand, one hundred forty-one".