Adding to 611422142 its reverse (241224116), we get a palindrome (852646258).
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2611422142 is an apocalyptic number.
611422142 is a wasteful number, since it uses less digits than its factorization.
611422142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 305711073.
The square root of 611422142 is about 24726.9517328764. The cubic root of 611422142 is about 848.7511728008.
The spelling of 611422142 in words is "six hundred eleven million, four hundred twenty-two thousand, one hundred forty-two".