61246865 has 4 divisors (see below), whose sum is σ = 73496244. Its totient is φ = 48997488.

The previous prime is 61246859. The next prime is 61246873. The reversal of 61246865 is 56864216.

61246865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24910081 + 36336784 = 4991^2 + 6028^2 .

It is a cyclic number.

It is not a de Polignac number, because 61246865 - 2⁸ = 61246609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6124682 + ... + 6124691.

It is an arithmetic number, because the mean of its divisors is an integer number (18374061).

Almost surely, 2^61246865 is an apocalyptic number.

It is an amenable number.

61246865 is a deficient number, since it is larger than the sum of its proper divisors (12249379).

61246865 is a wasteful number, since it uses less digits than its factorization.

61246865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12249378.

The product of its digits is 69120, while the sum is 38.

The square root of 61246865 is about 7826.0376308832. The cubic root of 61246865 is about 394.1800327317.

The spelling of 61246865 in words is "sixty-one million, two hundred forty-six thousand, eight hundred sixty-five".