61160447 has 4 divisors (see below), whose sum is σ = 61213416. Its totient is φ = 61107480.

The previous prime is 61160431. The next prime is 61160483. The reversal of 61160447 is 74406116.

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

It is a cyclic number.

It is not a de Polignac number, because 61160447 - 2⁴ = 61160431 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 (61160497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24713 + ... + 27074.

It is an arithmetic number, because the mean of its divisors is an integer number (15303354).

Almost surely, 2^61160447 is an apocalyptic number.

61160447 is a deficient number, since it is larger than the sum of its proper divisors (52969).

61160447 is a wasteful number, since it uses less digits than its factorization.

61160447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52968.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61160447 is about 7820.5144971415. The cubic root of 61160447 is about 393.9945523051.

The spelling of 61160447 in words is "sixty-one million, one hundred sixty thousand, four hundred forty-seven".