61361447 has 16 divisors (see below), whose sum is σ = 73777152. Its totient is φ = 49896000.

The previous prime is 61361437. The next prime is 61361471. The reversal of 61361447 is 74416316.

61361447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61361447 - 2⁶ = 61361383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61361407) 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 15 ways as a sum of consecutive naturals, for example, 18947 + ... + 21947.

It is an arithmetic number, because the mean of its divisors is an integer number (4611072).

Almost surely, 2^61361447 is an apocalyptic number.

61361447 is a deficient number, since it is larger than the sum of its proper divisors (12415705).

61361447 is a wasteful number, since it uses less digits than its factorization.

61361447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158.

The product of its digits is 12096, while the sum is 32.

The square root of 61361447 is about 7833.3547730203. The cubic root of 61361447 is about 394.4256931964.

The spelling of 61361447 in words is "sixty-one million, three hundred sixty-one thousand, four hundred forty-seven".