61182985 has 8 divisors (see below), whose sum is σ = 73585800. Its totient is φ = 48835584.

The previous prime is 61182977. The next prime is 61182997. The reversal of 61182985 is 58928116.

It can be written as a sum of positive squares in 4 ways, for example, as 8649481 + 52533504 = 2941^2 + 7248^2 .

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 61182985 - 2³ = 61182977 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 11382 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (9198225).

Almost surely, 2^61182985 is an apocalyptic number.

It is an amenable number.

61182985 is a deficient number, since it is larger than the sum of its proper divisors (12402815).

61182985 is a wasteful number, since it uses less digits than its factorization.

61182985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27707.

The product of its digits is 34560, while the sum is 40.

The square root of 61182985 is about 7821.9553182053. The cubic root of 61182985 is about 394.0429428316.

The spelling of 61182985 in words is "sixty-one million, one hundred eighty-two thousand, nine hundred eighty-five".