2164140145 has 8 divisors (see below), whose sum is σ = 2652223104. Its totient is φ = 1694475504.

The previous prime is 2164140113. The next prime is 2164140157. The reversal of 2164140145 is 5410414612.

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

It is a cyclic number.

It is not a de Polignac number, because 2164140145 - 2⁵ = 2164140113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4604319 + ... + 4604788.

It is an arithmetic number, because the mean of its divisors is an integer number (331527888).

Almost surely, 2^2164140145 is an apocalyptic number.

It is an amenable number.

2164140145 is a deficient number, since it is larger than the sum of its proper divisors (488082959).

2164140145 is an equidigital number, since it uses as much as digits as its factorization.

2164140145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9209159.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2164140145 is about 46520.3197001052. The cubic root of 2164140145 is about 1293.4861824628.

Adding to 2164140145 its reverse (5410414612), we get a palindrome (7574554757).

The spelling of 2164140145 in words is "two billion, one hundred sixty-four million, one hundred forty thousand, one hundred forty-five".