61110013 has 4 divisors (see below), whose sum is σ = 61153920. Its totient is φ = 61066108.

The previous prime is 61109999. The next prime is 61110089. The reversal of 61110013 is 31001116.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61110013 - 2⁹ = 61109501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61109975 and 61110002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61110713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19795 + ... + 22672.

It is an arithmetic number, because the mean of its divisors is an integer number (15288480).

Almost surely, 2^61110013 is an apocalyptic number.

It is an amenable number.

61110013 is a deficient number, since it is larger than the sum of its proper divisors (43907).

61110013 is a wasteful number, since it uses less digits than its factorization.

61110013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43906.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 61110013 is about 7817.2893639675. The cubic root of 61110013 is about 393.8862242018.

Adding to 61110013 its reverse (31001116), we get a palindrome (92111129).

The spelling of 61110013 in words is "sixty-one million, one hundred ten thousand, thirteen".