61321085 has 8 divisors (see below), whose sum is σ = 84097536. Its totient is φ = 42048720.

The previous prime is 61321079. The next prime is 61321087. The reversal of 61321085 is 58012316.

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

It is not a de Polignac number, because 61321085 - 2⁶ = 61321021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61321087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875981 + ... + 876050.

It is an arithmetic number, because the mean of its divisors is an integer number (10512192).

Almost surely, 2^61321085 is an apocalyptic number.

It is an amenable number.

61321085 is a deficient number, since it is larger than the sum of its proper divisors (22776451).

61321085 is a wasteful number, since it uses less digits than its factorization.

61321085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752043.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 61321085 is about 7830.7780584052. The cubic root of 61321085 is about 394.3391931629.

The spelling of 61321085 in words is "sixty-one million, three hundred twenty-one thousand, eighty-five".