61448172 has 12 divisors (see below), whose sum is σ = 143379096. Its totient is φ = 20482720.

The previous prime is 61448143. The next prime is 61448197. The reversal of 61448172 is 27184416.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 2560329 + ... + 2560352.

It is an arithmetic number, because the mean of its divisors is an integer number (11948258).

Almost surely, 2^61448172 is an apocalyptic number.

It is an amenable number.

61448172 is an abundant number, since it is smaller than the sum of its proper divisors (81930924).

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

61448172 is a wasteful number, since it uses less digits than its factorization.

61448172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120688 (or 5120686 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 61448172 is about 7838.8884416096. Note that the first 3 decimals coincide. The cubic root of 61448172 is about 394.6114258092.

The spelling of 61448172 in words is "sixty-one million, four hundred forty-eight thousand, one hundred seventy-two".