61123623 has 16 divisors (see below), whose sum is σ = 89202816. Its totient is φ = 36921440.

The previous prime is 61123591. The next prime is 61123663. The reversal of 61123623 is 32632116.

It is a happy number.

61123623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61123623 - 2⁵ = 61123591 is a prime.

It is a super-2 number, since 2×61123623² = 7472194577292258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61123593 and 61123602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61123663) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7540 + ... + 13382.

It is an arithmetic number, because the mean of its divisors is an integer number (5575176).

Almost surely, 2^61123623 is an apocalyptic number.

61123623 is a deficient number, since it is larger than the sum of its proper divisors (28079193).

61123623 is a wasteful number, since it uses less digits than its factorization.

61123623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174.

The product of its digits is 1296, while the sum is 24.

The square root of 61123623 is about 7818.1598218507. The cubic root of 61123623 is about 393.9154632377.

Adding to 61123623 its reverse (32632116), we get a palindrome (93755739).

The spelling of 61123623 in words is "sixty-one million, one hundred twenty-three thousand, six hundred twenty-three".