61541744 has 60 divisors (see below), whose sum is σ = 136183992. Its totient is φ = 26716800.

The previous prime is 61541723. The next prime is 61541771. The reversal of 61541744 is 44714516.

61541744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 61541744.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 92774 + ... + 93434.

Almost surely, 2^61541744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61541744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68091996).

61541744 is an abundant number, since it is smaller than the sum of its proper divisors (74642248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61541744 is a wasteful number, since it uses less digits than its factorization.

61541744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 697 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 61541744 is about 7844.8546194305. The cubic root of 61541744 is about 394.8116262508.

The spelling of 61541744 in words is "sixty-one million, five hundred forty-one thousand, seven hundred forty-four".