61304272 has 10 divisors (see below), whose sum is σ = 118777058. Its totient is φ = 30652128.

The previous prime is 61304219. The next prime is 61304303. The reversal of 61304272 is 27240316.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 6780816 = 7384^2 + 2604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1915743 + ... + 1915774.

Almost surely, 2^61304272 is an apocalyptic number.

It is an amenable number.

61304272 is a deficient number, since it is larger than the sum of its proper divisors (57472786).

61304272 is a wasteful number, since it uses less digits than its factorization.

61304272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831525 (or 3831519 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 61304272 is about 7829.7044644099. The cubic root of 61304272 is about 394.3031499276.

Adding to 61304272 its reverse (27240316), we get a palindrome (88544588).

The spelling of 61304272 in words is "sixty-one million, three hundred four thousand, two hundred seventy-two".