2146061851 has 4 divisors (see below), whose sum is σ = 2239368912. Its totient is φ = 2052754792.

The previous prime is 2146061809. The next prime is 2146061867. The reversal of 2146061851 is 1581606412.

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 2146061851 - 2¹¹ = 2146059803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2146061881) 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, 46653496 + ... + 46653541.

It is an arithmetic number, because the mean of its divisors is an integer number (559842228).

Almost surely, 2^2146061851 is an apocalyptic number.

2146061851 is a deficient number, since it is larger than the sum of its proper divisors (93307061).

2146061851 is an equidigital number, since it uses as much as digits as its factorization.

2146061851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93307060.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2146061851 is about 46325.6068605690. The cubic root of 2146061851 is about 1289.8743645047.

The spelling of 2146061851 in words is "two billion, one hundred forty-six million, sixty-one thousand, eight hundred fifty-one".