2161146059 has 4 divisors (see below), whose sum is σ = 2230860480. Its totient is φ = 2091431640.

The previous prime is 2161146047. The next prime is 2161146083. The reversal of 2161146059 is 9506411612.

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 2161146059 - 2¹² = 2161141963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2161146259) 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 3 ways as a sum of consecutive naturals, for example, 34857164 + ... + 34857225.

It is an arithmetic number, because the mean of its divisors is an integer number (557715120).

Almost surely, 2^2161146059 is an apocalyptic number.

2161146059 is a deficient number, since it is larger than the sum of its proper divisors (69714421).

2161146059 is an equidigital number, since it uses as much as digits as its factorization.

2161146059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69714420.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 2161146059 is about 46488.1281511743. The cubic root of 2161146059 is about 1292.8893948252.

The spelling of 2161146059 in words is "two billion, one hundred sixty-one million, one hundred forty-six thousand, fifty-nine".