1546 has 4 divisors (see below), whose sum is σ = 2322.
Its totient is φ = 772.
The previous prime is 1543. The next prime is 1549. The reversal of 1546 is 6451.
1546 is nontrivially palindromic in base 12.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (1543) and next prime (1549).
It can be written as a sum of positive squares in only one way, i.e., 1521 + 25 = 39^2 + 5^2
1546 is an undulating number in base 12.
It is not an unprimeable number, because it can be changed into a prime (1543) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385 + ... + 388.
21546 is an apocalyptic number.
1546 is a deficient number, since it is larger than the sum of its proper divisors (776).
1546 is an equidigital number, since it uses as much as digits as its factorization.
1546 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 775.
The product of its digits is 120, while the sum is 16.
The square root of 1546 is about 39.3192065027.
The cubic root of 1546 is about 11.5629814750.
Adding to 1546 its reverse (6451), we get a palindrome (7997).
The spelling of 1546 in words is "one thousand, five hundred forty-six".