2145166203 has 8 divisors (see below), whose sum is σ = 2878440208. Its totient is φ = 1421001504.

The previous prime is 2145166201. The next prime is 2145166213. The reversal of 2145166203 is 3026615412.

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

It is not a de Polignac number, because 2145166203 - 2¹ = 2145166201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145166201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276776 + ... + 2277717.

It is an arithmetic number, because the mean of its divisors is an integer number (359805026).

Almost surely, 2^2145166203 is an apocalyptic number.

2145166203 is a deficient number, since it is larger than the sum of its proper divisors (733274005).

2145166203 is a wasteful number, since it uses less digits than its factorization.

2145166203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554653.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2145166203 is about 46315.9389735326. The cubic root of 2145166203 is about 1289.6948987005.

The spelling of 2145166203 in words is "two billion, one hundred forty-five million, one hundred sixty-six thousand, two hundred three".