2154341212 has 12 divisors (see below), whose sum is σ = 3900100680. Its totient is φ = 1040026736.

The previous prime is 2154341177. The next prime is 2154341213. The reversal of 2154341212 is 2121434512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154341213) 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, 9285838 + ... + 9286069.

It is an arithmetic number, because the mean of its divisors is an integer number (325008390).

Almost surely, 2^2154341212 is an apocalyptic number.

It is an amenable number.

2154341212 is a deficient number, since it is larger than the sum of its proper divisors (1745759468).

2154341212 is a wasteful number, since it uses less digits than its factorization.

2154341212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18571940 (or 18571938 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 2154341212 is about 46414.8813636316. The cubic root of 2154341212 is about 1291.5309852088.

Adding to 2154341212 its reverse (2121434512), we get a palindrome (4275775724).

The spelling of 2154341212 in words is "two billion, one hundred fifty-four million, three hundred forty-one thousand, two hundred twelve".