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 de Polignac number, because none of the positive numbers 2k-61442077 is a prime.
It is a Duffinian number.
It is a congruent number.
It is a 3918-hyperperfect number.
Almost surely, 261442077 is an apocalyptic number.
It is an amenable number.
61442077 is an equidigital number, since it uses as much as digits as its factorization.
61442077 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15682.
The square root of 61442077 is about 7838.4996651145. The cubic root of 61442077 is about 394.5983783033.
The spelling of 61442077 in words is "sixty-one million, four hundred forty-two thousand, seventy-seven".