61103124 has 18 divisors (see below), whose sum is σ = 154455210. Its totient is φ = 20367696.

The previous prime is 61103123. The next prime is 61103167. The reversal of 61103124 is 42130116.

It is a happy number.

61103124 is a `hidden beast` number, since 611 + 0 + 31 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39312900 + 21790224 = 6270^2 + 4668^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 61103097 and 61103106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61103123) 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 in 5 ways as a sum of consecutive naturals, for example, 848619 + ... + 848690.

It is an arithmetic number, because the mean of its divisors is an integer number (8580845).

Almost surely, 2^61103124 is an apocalyptic number.

It is an amenable number.

61103124 is an abundant number, since it is smaller than the sum of its proper divisors (93352086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61103124 is a wasteful number, since it uses less digits than its factorization.

61103124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697319 (or 1697314 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 61103124 is about 7816.8487256694. The cubic root of 61103124 is about 393.8714225676.

The spelling of 61103124 in words is "sixty-one million, one hundred three thousand, one hundred twenty-four".