61045117 has 16 divisors (see below), whose sum is σ = 71884800. Its totient is φ = 50759280.

The previous prime is 61045111. The next prime is 61045121. The reversal of 61045117 is 71154016.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61045117 - 2⁷ = 61044989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61045091 and 61045100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61045111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31692 + ... + 33562.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2^61045117 is an apocalyptic number.

It is an amenable number.

61045117 is a deficient number, since it is larger than the sum of its proper divisors (10839683).

61045117 is a wasteful number, since it uses less digits than its factorization.

61045117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 61045117 is about 7813.1374619931. The cubic root of 61045117 is about 393.7467451818.

The spelling of 61045117 in words is "sixty-one million, forty-five thousand, one hundred seventeen".