It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 15.
It is a nialpdrome in base 11 and base 12.
It is a congruent number.
1045 is the 19-th octagonal number.
It is an amenable number.
1045 is a wasteful number, since it uses less digits than its factorization.
It is an anagram of its base 6 representation: 1045 = (4501)6.
1045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35.
The square root of 1045 is about 32.3264597505. The cubic root of 1045 is about 10.1478046163.
Subtracting from 1045 its sum of digits (10), we obtain a triangular number (1035 = T45).
Adding to 1045 its reverse (5401), we get a palindrome (6446).
Subtracting 1045 from its reverse (5401), we obtain a square (4356 = 662).
The spelling of 1045 in words is "one thousand, forty-five".