61131116 has 12 divisors (see below), whose sum is σ = 113272488. Its totient is φ = 28767552.

The previous prime is 61131097. The next prime is 61131137. The reversal of 61131116 is 61113116.

It is a happy number.

61131116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 449426 + ... + 449561.

It is an arithmetic number, because the mean of its divisors is an integer number (9439374).

Almost surely, 2^61131116 is an apocalyptic number.

It is an amenable number.

61131116 is a deficient number, since it is larger than the sum of its proper divisors (52141372).

61131116 is a wasteful number, since it uses less digits than its factorization.

61131116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899008 (or 899006 counting only the distinct ones).

The product of its digits is 108, while the sum is 20.

The square root of 61131116 is about 7818.6390120020. The cubic root of 61131116 is about 393.9315589675.

The spelling of 61131116 in words is "sixty-one million, one hundred thirty-one thousand, one hundred sixteen".