61075072 has 16 divisors (see below), whose sum is σ = 121673250. Its totient is φ = 30537472.

The previous prime is 61075061. The next prime is 61075087. The reversal of 61075072 is 27057016.

61075072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 60590656 + 484416 = 7784^2 + 696^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 61075072.

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, 238447 + ... + 238702.

Almost surely, 2^61075072 is an apocalyptic number.

It is an amenable number.

61075072 is a deficient number, since it is larger than the sum of its proper divisors (60598178).

61075072 is an equidigital number, since it uses as much as digits as its factorization.

61075072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477163 (or 477151 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 61075072 is about 7815.0541904711. The cubic root of 61075072 is about 393.8111388392.

The spelling of 61075072 in words is "sixty-one million, seventy-five thousand, seventy-two".