61481685 has 8 divisors (see below), whose sum is σ = 98370720. Its totient is φ = 32790224.

The previous prime is 61481677. The next prime is 61481689. The reversal of 61481685 is 58618416.

61481685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61481685 - 2³ = 61481677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61481689) 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 7 ways as a sum of consecutive naturals, for example, 2049375 + ... + 2049404.

It is an arithmetic number, because the mean of its divisors is an integer number (12296340).

Almost surely, 2^61481685 is an apocalyptic number.

It is an amenable number.

61481685 is a deficient number, since it is larger than the sum of its proper divisors (36889035).

61481685 is a wasteful number, since it uses less digits than its factorization.

61481685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098787.

The product of its digits is 46080, while the sum is 39.

The square root of 61481685 is about 7841.0257619778. The cubic root of 61481685 is about 394.6831513455.

The spelling of 61481685 in words is "sixty-one million, four hundred eighty-one thousand, six hundred eighty-five".