2153187213 has 16 divisors (see below), whose sum is σ = 2949900480. Its totient is φ = 1396002816.

The previous prime is 2153187209. The next prime is 2153187227. The reversal of 2153187213 is 3127813512.

It is a happy number.

It is not a de Polignac number, because 2153187213 - 2² = 2153187209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153187233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366606 + ... + 372432.

It is an arithmetic number, because the mean of its divisors is an integer number (184368780).

Almost surely, 2^2153187213 is an apocalyptic number.

It is an amenable number.

2153187213 is a deficient number, since it is larger than the sum of its proper divisors (796713267).

2153187213 is a wasteful number, since it uses less digits than its factorization.

2153187213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196.

The product of its digits is 10080, while the sum is 33.

The square root of 2153187213 is about 46402.4483513532. The cubic root of 2153187213 is about 1291.3003359415.

The spelling of 2153187213 in words is "two billion, one hundred fifty-three million, one hundred eighty-seven thousand, two hundred thirteen".