2153213434 has 8 divisors (see below), whose sum is σ = 3239075700. Its totient is φ = 1073521536.

The previous prime is 2153213429. The next prime is 2153213477. The reversal of 2153213434 is 4343123512.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2152496025 + 717409 = 46395^2 + 847^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541719 + ... + 1543114.

Almost surely, 2^2153213434 is an apocalyptic number.

2153213434 is a deficient number, since it is larger than the sum of its proper divisors (1085862266).

2153213434 is a wasteful number, since it uses less digits than its factorization.

2153213434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085184.

The product of its digits is 8640, while the sum is 28.

The square root of 2153213434 is about 46402.7308894638. The cubic root of 2153213434 is about 1291.3055776360.

Adding to 2153213434 its reverse (4343123512), we get a palindrome (6496336946).

The spelling of 2153213434 in words is "two billion, one hundred fifty-three million, two hundred thirteen thousand, four hundred thirty-four".