61190161 has 8 divisors (see below), whose sum is σ = 63409280. Its totient is φ = 59007312.

The previous prime is 61190159. The next prime is 61190177. The reversal of 61190161 is 16109116.

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

It is not a de Polignac number, because 61190161 - 2¹ = 61190159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61190111) 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 7 ways as a sum of consecutive naturals, for example, 5610 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (7926160).

Almost surely, 2^61190161 is an apocalyptic number.

It is an amenable number.

61190161 is a deficient number, since it is larger than the sum of its proper divisors (2219119).

61190161 is a wasteful number, since it uses less digits than its factorization.

61190161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18135.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 61190161 is about 7822.4140135894. The cubic root of 61190161 is about 394.0583476679.

Adding to 61190161 its reverse (16109116), we get a palindrome (77299277).

The spelling of 61190161 in words is "sixty-one million, one hundred ninety thousand, one hundred sixty-one".