61105163 has 4 divisors (see below), whose sum is σ = 69834480. Its totient is φ = 52375848.

The previous prime is 61105153. The next prime is 61105169. The reversal of 61105163 is 36150116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61105163 - 2⁴ = 61105147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61105169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4364648 + ... + 4364661.

It is an arithmetic number, because the mean of its divisors is an integer number (17458620).

Almost surely, 2^61105163 is an apocalyptic number.

61105163 is a deficient number, since it is larger than the sum of its proper divisors (8729317).

61105163 is an equidigital number, since it uses as much as digits as its factorization.

61105163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729316.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 61105163 is about 7816.9791479829. The cubic root of 61105163 is about 393.8758036578.

Adding to 61105163 its reverse (36150116), we get a palindrome (97255279).

The spelling of 61105163 in words is "sixty-one million, one hundred five thousand, one hundred sixty-three".