61031117 has 12 divisors (see below), whose sum is σ = 71343936. Its totient is φ = 52055640.

The previous prime is 61031101. The next prime is 61031119. The reversal of 61031117 is 71113016.

61031117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61031117 - 2⁴ = 61031101 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 (61031119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7388 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (5945328).

Almost surely, 2^61031117 is an apocalyptic number.

It is an amenable number.

61031117 is a deficient number, since it is larger than the sum of its proper divisors (10312819).

61031117 is a wasteful number, since it uses less digits than its factorization.

61031117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 61031117 is about 7812.2414837228. The cubic root of 61031117 is about 393.7166424416.

The spelling of 61031117 in words is "sixty-one million, thirty-one thousand, one hundred seventeen".