61543316 has 12 divisors (see below), whose sum is σ = 107774688. Its totient is φ = 30750552.

The previous prime is 61543309. The next prime is 61543333. The reversal of 61543316 is 61334516.

It is a happy number.

61543316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 2585 + ... + 11391.

It is an arithmetic number, because the mean of its divisors is an integer number (8981224).

Almost surely, 2^61543316 is an apocalyptic number.

It is an amenable number.

61543316 is a deficient number, since it is larger than the sum of its proper divisors (46231372).

61543316 is a wasteful number, since it uses less digits than its factorization.

61543316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558 (or 10556 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 61543316 is about 7844.9548118520. The cubic root of 61543316 is about 394.8149878639.

The spelling of 61543316 in words is "sixty-one million, five hundred forty-three thousand, three hundred sixteen".