61170163 has 4 divisors (see below), whose sum is σ = 61260408. Its totient is φ = 61079920.

The previous prime is 61170149. The next prime is 61170169. The reversal of 61170163 is 36107116.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61170163 - 2¹⁷ = 61039091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61170169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44098 + ... + 45463.

It is an arithmetic number, because the mean of its divisors is an integer number (15315102).

Almost surely, 2^61170163 is an apocalyptic number.

61170163 is a deficient number, since it is larger than the sum of its proper divisors (90245).

61170163 is an equidigital number, since it uses as much as digits as its factorization.

61170163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90244.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 61170163 is about 7821.1356592249. The cubic root of 61170163 is about 394.0154146357.

Adding to 61170163 its reverse (36107116), we get a palindrome (97277279).

The spelling of 61170163 in words is "sixty-one million, one hundred seventy thousand, one hundred sixty-three".