61355163 has 8 divisors (see below), whose sum is σ = 83547648. Its totient is φ = 40033064.

The previous prime is 61355141. The next prime is 61355179. The reversal of 61355163 is 36155316.

61355163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61355163 - 2⁵ = 61355131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61355163.

It is not an unprimeable number, because it can be changed into a prime (61355863) 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, 217431 + ... + 217712.

It is an arithmetic number, because the mean of its divisors is an integer number (10443456).

Almost surely, 2^61355163 is an apocalyptic number.

61355163 is a deficient number, since it is larger than the sum of its proper divisors (22192485).

61355163 is a wasteful number, since it uses less digits than its factorization.

61355163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435193.

The product of its digits is 8100, while the sum is 30.

The square root of 61355163 is about 7832.9536574654. The cubic root of 61355163 is about 394.4122284135.

The spelling of 61355163 in words is "sixty-one million, three hundred fifty-five thousand, one hundred sixty-three".