61000228 has 6 divisors (see below), whose sum is σ = 106750406. Its totient is φ = 30500112.

The previous prime is 61000207. The next prime is 61000229. The reversal of 61000228 is 82200016.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 15194404 = 6768^2 + 3898^2 .

It is not an unprimeable number, because it can be changed into a prime (61000229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7625025 + ... + 7625032.

Almost surely, 2^61000228 is an apocalyptic number.

It is an amenable number.

61000228 is a deficient number, since it is larger than the sum of its proper divisors (45750178).

61000228 is a wasteful number, since it uses less digits than its factorization.

61000228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15250061 (or 15250059 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 61000228 is about 7810.2642720973. The cubic root of 61000228 is about 393.6502087584.

The spelling of 61000228 in words is "sixty-one million, two hundred twenty-eight", and thus it is an aban number.