61000103 has 4 divisors (see below), whose sum is σ = 61735128. Its totient is φ = 60265080.

The previous prime is 61000091. The next prime is 61000111. The reversal of 61000103 is 30100016.

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

It is a cyclic number.

It is not a de Polignac number, because 61000103 - 2⁶ = 61000039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367388 + ... + 367553.

It is an arithmetic number, because the mean of its divisors is an integer number (15433782).

Almost surely, 2^61000103 is an apocalyptic number.

61000103 is a deficient number, since it is larger than the sum of its proper divisors (735025).

61000103 is an equidigital number, since it uses as much as digits as its factorization.

61000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735024.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 61000103 is about 7810.2562698032. The cubic root of 61000103 is about 393.6499398725.

Adding to 61000103 its reverse (30100016), we get a palindrome (91100119).

The spelling of 61000103 in words is "sixty-one million, one hundred three", and thus it is an aban number.