61121086 has 16 divisors (see below), whose sum is σ = 104542704. Its totient is φ = 26550144.

The previous prime is 61121041. The next prime is 61121101. The reversal of 61121086 is 68012116.

61121086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61121086.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 68700 + ... + 69583.

It is an arithmetic number, because the mean of its divisors is an integer number (6533919).

Almost surely, 2^61121086 is an apocalyptic number.

61121086 is a deficient number, since it is larger than the sum of its proper divisors (43421618).

61121086 is a wasteful number, since it uses less digits than its factorization.

61121086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138315.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 61121086 is about 7817.9975697105. The cubic root of 61121086 is about 393.9100132043.

It can be divided in two parts, 61 and 121086, that multiplied together give a triangular number (7386246 = T₃₈₄₃).

The spelling of 61121086 in words is "sixty-one million, one hundred twenty-one thousand, eighty-six".