61281068 has 6 divisors (see below), whose sum is σ = 107241876. Its totient is φ = 30640532.

The previous prime is 61281053. The next prime is 61281071. The reversal of 61281068 is 86018216.

61281068 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 as a sum of consecutive naturals, namely, 7660130 + ... + 7660137.

It is an arithmetic number, because the mean of its divisors is an integer number (17873646).

Almost surely, 2^61281068 is an apocalyptic number.

It is an amenable number.

61281068 is a deficient number, since it is larger than the sum of its proper divisors (45960808).

61281068 is a wasteful number, since it uses less digits than its factorization.

61281068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15320271 (or 15320269 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 61281068 is about 7828.2225313286. Note that the first 3 decimals coincide. The cubic root of 61281068 is about 394.2533950214.

The spelling of 61281068 in words is "sixty-one million, two hundred eighty-one thousand, sixty-eight".