61128950 has 24 divisors (see below), whose sum is σ = 116476920. Its totient is φ = 23854400.

The previous prime is 61128913. The next prime is 61128961. The reversal of 61128950 is 5982116.

61128950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12860 + ... + 16959.

It is an arithmetic number, because the mean of its divisors is an integer number (4853205).

Almost surely, 2^61128950 is an apocalyptic number.

61128950 is a deficient number, since it is larger than the sum of its proper divisors (55347970).

61128950 is a wasteful number, since it uses less digits than its factorization.

61128950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29872 (or 29867 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 61128950 is about 7818.5004956193. The cubic root of 61128950 is about 393.9269063133.

The spelling of 61128950 in words is "sixty-one million, one hundred twenty-eight thousand, nine hundred fifty".