61116143 has 8 divisors (see below), whose sum is σ = 66858240. Its totient is φ = 55405080.

The previous prime is 61116131. The next prime is 61116151. The reversal of 61116143 is 34161116.

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

It is a cyclic number.

It is not a de Polignac number, because 61116143 - 2¹² = 61112047 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 (61116113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3533 + ... + 11606.

It is an arithmetic number, because the mean of its divisors is an integer number (8357280).

Almost surely, 2^61116143 is an apocalyptic number.

61116143 is a deficient number, since it is larger than the sum of its proper divisors (5742097).

61116143 is a wasteful number, since it uses less digits than its factorization.

61116143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15517.

The product of its digits is 432, while the sum is 23.

The square root of 61116143 is about 7817.6814337756. The cubic root of 61116143 is about 393.8993941211.

Adding to 61116143 its reverse (34161116), we get a palindrome (95277259).

The spelling of 61116143 in words is "sixty-one million, one hundred sixteen thousand, one hundred forty-three".