It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a Duffinian number.
It is a Curzon number.
2611153 is an apocalyptic number.
It is an amenable number.
611153 is an equidigital number, since it uses as much as digits as its factorization.
611153 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1566.
The square root of 611153 is about 781.7627517348. The cubic root of 611153 is about 84.8626617223.
Adding to 611153 its reverse (351116), we get a palindrome (962269).
The spelling of 611153 in words is "six hundred eleven thousand, one hundred fifty-three".