1612 has 12 divisors (see below), whose sum is σ = 3136. Its totient is φ = 720.

The previous prime is 1609. The next prime is 1613. The reversal of 1612 is 2161.

1612 is nontrivially palindromic in base 5 and base 15.

It is a hoax number, since the sum of its digits (10) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

1612 is an undulating number in base 15.

It is a plaindrome in base 6 and base 11.

It is a nialpdrome in base 13 and base 14.

It is not an unprimeable number, because it can be changed into a prime (1613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37 + ... + 67.

It is an amenable number.

1612 is a deficient number, since it is larger than the sum of its proper divisors (1524).

1612 is a wasteful number, since it uses less digits than its factorization.

1612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48 (or 46 counting only the distinct ones).

The product of its digits is 12, while the sum is 10.

The square root of 1612 is about 40.1497197998. The cubic root of 1612 is about 11.7252383329.

Subtracting from 1612 its product of digits (12), we obtain a square (1600 = 40^{2}).

Adding to 1612 its reverse (2161), we get a palindrome (3773).

It can be divided in two parts, 16 and 12, that added together give a triangular number (28 = T_{7}).

The spelling of 1612 in words is "one thousand, six hundred twelve".

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