61123844 has 6 divisors (see below), whose sum is σ = 106966734. Its totient is φ = 30561920.

The previous prime is 61123831. The next prime is 61123861. The reversal of 61123844 is 44832116.

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 8008900 = 7288^2 + 2830^2 .

It is a super-2 number, since 2×61123844² = 7472248610672672, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7640477 + ... + 7640484.

It is an arithmetic number, because the mean of its divisors is an integer number (17827789).

Almost surely, 2^61123844 is an apocalyptic number.

It is an amenable number.

61123844 is a deficient number, since it is larger than the sum of its proper divisors (45842890).

61123844 is a wasteful number, since it uses less digits than its factorization.

61123844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15280965 (or 15280963 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 61123844 is about 7818.1739555986. The cubic root of 61123844 is about 393.9159379871.

The spelling of 61123844 in words is "sixty-one million, one hundred twenty-three thousand, eight hundred forty-four".