1612443 has 16 divisors (see below), whose sum is σ = 2508800. Its totient is φ = 920808.

The previous prime is 1612439. The next prime is 1612451. The reversal of 1612443 is 3442161.

It is not a de Polignac number, because 1612443 - 2² = 1612439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

1612443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1612463) 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 15 ways as a sum of consecutive naturals, for example, 246 + ... + 1812.

It is an arithmetic number, because the mean of its divisors is an integer number (156800).

2^1612443 is an apocalyptic number.

1612443 is a deficient number, since it is larger than the sum of its proper divisors (896357).

1612443 is an equidigital number, since it uses as much as digits as its factorization.

1612443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1577 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1612443 is about 1269.8200659936. The cubic root of 1612443 is about 117.2631232063.

The spelling of 1612443 in words is "one million, six hundred twelve thousand, four hundred forty-three".