61117061 has 8 divisors (see below), whose sum is σ = 63871104. Its totient is φ = 58423680.

The previous prime is 61117031. The next prime is 61117073. The reversal of 61117061 is 16071116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61117061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61117031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13100 + ... + 17141.

It is an arithmetic number, because the mean of its divisors is an integer number (7983888).

Almost surely, 2^61117061 is an apocalyptic number.

It is an amenable number.

61117061 is a deficient number, since it is larger than the sum of its proper divisors (2754043).

61117061 is a wasteful number, since it uses less digits than its factorization.

61117061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 61117061 is about 7817.7401466153. The cubic root of 61117061 is about 393.9013663105.

Adding to 61117061 its reverse (16071116), we get a palindrome (77188177).

The spelling of 61117061 in words is "sixty-one million, one hundred seventeen thousand, sixty-one".