61449485 has 8 divisors (see below), whose sum is σ = 73878936. Its totient is φ = 49066560.

The previous prime is 61449481. The next prime is 61449517. The reversal of 61449485 is 58494416.

61449485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2128681 + 59320804 = 1459^2 + 7702^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61449485 - 2² = 61449481 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 (61449481) 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 7 ways as a sum of consecutive naturals, for example, 8654 + ... + 14063.

It is an arithmetic number, because the mean of its divisors is an integer number (9234867).

Almost surely, 2^61449485 is an apocalyptic number.

It is an amenable number.

61449485 is a deficient number, since it is larger than the sum of its proper divisors (12429451).

61449485 is a wasteful number, since it uses less digits than its factorization.

61449485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23263.

The product of its digits is 138240, while the sum is 41.

The square root of 61449485 is about 7838.9721902811. The cubic root of 61449485 is about 394.6142364223.

The spelling of 61449485 in words is "sixty-one million, four hundred forty-nine thousand, four hundred eighty-five".