61170385 has 8 divisors (see below), whose sum is σ = 73785960. Its totient is φ = 48681984.

The previous prime is 61170383. The next prime is 61170407. The reversal of 61170385 is 58307116.

61170385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7059649 + 54110736 = 2657^2 + 7356^2 .

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 61170385 - 2¹ = 61170383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61170383) 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, 30730 + ... + 32659.

It is an arithmetic number, because the mean of its divisors is an integer number (9223245).

Almost surely, 2^61170385 is an apocalyptic number.

It is an amenable number.

61170385 is a deficient number, since it is larger than the sum of its proper divisors (12615575).

61170385 is a wasteful number, since it uses less digits than its factorization.

61170385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63587.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 61170385 is about 7821.1498515244. The cubic root of 61170385 is about 394.0158912913.

The spelling of 61170385 in words is "sixty-one million, one hundred seventy thousand, three hundred eighty-five".