61112017 has 8 divisors (see below), whose sum is σ = 62840232. Its totient is φ = 59395200.

The previous prime is 61112011. The next prime is 61112047. The reversal of 61112017 is 71021116.

It can be written as a sum of positive squares in 4 ways, for example, as 1498176 + 59613841 = 1224^2 + 7721^2 .

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 61112017 - 2¹¹ = 61109969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61111985 and 61112003.

It is not an unprimeable number, because it can be changed into a prime (61112011) 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, 8667 + ... + 14047.

It is an arithmetic number, because the mean of its divisors is an integer number (7855029).

Almost surely, 2^61112017 is an apocalyptic number.

It is an amenable number.

61112017 is a deficient number, since it is larger than the sum of its proper divisors (1728215).

61112017 is a wasteful number, since it uses less digits than its factorization.

61112017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 61112017 is about 7817.4175403390. The cubic root of 61112017 is about 393.8905297666.

Subtracting 61112017 from its reverse (71021116), we obtain a palindrome (9909099).

It can be divided in two parts, 6111 and 2017, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 61112017 in words is "sixty-one million, one hundred twelve thousand, seventeen".