2121600146 has 16 divisors (see below), whose sum is σ = 3199660800. Its totient is φ = 1055055888.

The previous prime is 2121600139. The next prime is 2121600149. The reversal of 2121600146 is 6410061212.

It is not an unprimeable number, because it can be changed into a prime (2121600149) 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, 796565 + ... + 799223.

It is an arithmetic number, because the mean of its divisors is an integer number (199978800).

Almost surely, 2^2121600146 is an apocalyptic number.

2121600146 is a deficient number, since it is larger than the sum of its proper divisors (1078060654).

2121600146 is a wasteful number, since it uses less digits than its factorization.

2121600146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2121600146 is about 46060.8309304120. The cubic root of 2121600146 is about 1284.9547836946.

Adding to 2121600146 its reverse (6410061212), we get a palindrome (8531661358).

The spelling of 2121600146 in words is "two billion, one hundred twenty-one million, six hundred thousand, one hundred forty-six".