61003105 has 4 divisors (see below), whose sum is σ = 73203732. Its totient is φ = 48802480.

The previous prime is 61003097. The next prime is 61003127. The reversal of 61003105 is 50130016.

61003105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32615521 + 28387584 = 5711^2 + 5328^2 .

It is not a de Polignac number, because 61003105 - 2³ = 61003097 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 6100306 + ... + 6100315.

It is an arithmetic number, because the mean of its divisors is an integer number (18300933).

Almost surely, 2^61003105 is an apocalyptic number.

It is an amenable number.

61003105 is a deficient number, since it is larger than the sum of its proper divisors (12200627).

61003105 is a wasteful number, since it uses less digits than its factorization.

61003105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12200626.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 61003105 is about 7810.4484506333. The cubic root of 61003105 is about 393.6563973356.

The spelling of 61003105 in words is "sixty-one million, three thousand, one hundred five".