61247085 has 32 divisors (see below), whose sum is σ = 100362240. Its totient is φ = 31886400.

The previous prime is 61247033. The next prime is 61247129. The reversal of 61247085 is 58074216.

It is not a de Polignac number, because 61247085 - 2⁷ = 61246957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139296 + ... + 139734.

It is an arithmetic number, because the mean of its divisors is an integer number (3136320).

Almost surely, 2^61247085 is an apocalyptic number.

It is an amenable number.

61247085 is a deficient number, since it is larger than the sum of its proper divisors (39115155).

61247085 is a wasteful number, since it uses less digits than its factorization.

61247085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 61247085 is about 7826.0516865147. The cubic root of 61247085 is about 394.1805046988.

The spelling of 61247085 in words is "sixty-one million, two hundred forty-seven thousand, eighty-five".