61367544 has 160 divisors (see below), whose sum is σ = 200027520. Its totient is φ = 17216064.

The previous prime is 61367539. The next prime is 61367557. The reversal of 61367544 is 44576316.

It is a happy number.

61367544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 61367499 and 61367508.

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 39 ways as a sum of consecutive naturals, for example, 376407 + ... + 376569.

It is an arithmetic number, because the mean of its divisors is an integer number (1250172).

Almost surely, 2^61367544 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 61367544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100013760).

61367544 is an abundant number, since it is smaller than the sum of its proper divisors (138659976).

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

61367544 is a wasteful number, since it uses less digits than its factorization.

61367544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 258 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 61367544 is about 7833.7439325012. The cubic root of 61367544 is about 394.4387564140.

The spelling of 61367544 in words is "sixty-one million, three hundred sixty-seven thousand, five hundred forty-four".