61307085 has 48 divisors (see below), whose sum is σ = 114912000. Its totient is φ = 27828864.

The previous prime is 61307069. The next prime is 61307111. The reversal of 61307085 is 58070316.

It is not a de Polignac number, because 61307085 - 2⁴ = 61307069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175491 + ... + 175839.

It is an arithmetic number, because the mean of its divisors is an integer number (2394000).

Almost surely, 2^61307085 is an apocalyptic number.

It is an amenable number.

61307085 is a deficient number, since it is larger than the sum of its proper divisors (53604915).

61307085 is a wasteful number, since it uses less digits than its factorization.

61307085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 61307085 is about 7829.8840987591. The cubic root of 61307085 is about 394.3091808167.

The spelling of 61307085 in words is "sixty-one million, three hundred seven thousand, eighty-five".