2164140146 has 16 divisors (see below), whose sum is σ = 3800442240. Its totient is φ = 904866720.

The previous prime is 2164140113. The next prime is 2164140157. The reversal of 2164140146 is 6410414612.

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, 1884566 + ... + 1885713.

It is an arithmetic number, because the mean of its divisors is an integer number (237527640).

Almost surely, 2^2164140146 is an apocalyptic number.

2164140146 is a deficient number, since it is larger than the sum of its proper divisors (1636302094).

2164140146 is a wasteful number, since it uses less digits than its factorization.

2164140146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770329.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2164140146 is about 46520.3197108532. The cubic root of 2164140146 is about 1293.4861826620.

Adding to 2164140146 its reverse (6410414612), we get a palindrome (8574554758).

The spelling of 2164140146 in words is "two billion, one hundred sixty-four million, one hundred forty thousand, one hundred forty-six".