61456613 has 4 divisors (see below), whose sum is σ = 61488960. Its totient is φ = 61424268.

The previous prime is 61456579. The next prime is 61456631. The reversal of 61456613 is 31665416.

61456613 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61456613 - 2⁸ = 61456357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61456613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61456643) by changing a digit.

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, 13133 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (15372240).

Almost surely, 2^61456613 is an apocalyptic number.

It is an amenable number.

61456613 is a deficient number, since it is larger than the sum of its proper divisors (32347).

61456613 is a wasteful number, since it uses less digits than its factorization.

61456613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32346.

The product of its digits is 12960, while the sum is 32.

The square root of 61456613 is about 7839.4268285379. The cubic root of 61456613 is about 394.6294939493.

The spelling of 61456613 in words is "sixty-one million, four hundred fifty-six thousand, six hundred thirteen".