2153431351 has 4 divisors (see below), whose sum is σ = 2154106872. Its totient is φ = 2152755832.

The previous prime is 2153431303. The next prime is 2153431411. The reversal of 2153431351 is 1531343512.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153431351 - 2²⁵ = 2119876919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153438351) 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 3 ways as a sum of consecutive naturals, for example, 332956 + ... + 339361.

It is an arithmetic number, because the mean of its divisors is an integer number (538526718).

Almost surely, 2^2153431351 is an apocalyptic number.

2153431351 is a deficient number, since it is larger than the sum of its proper divisors (675521).

2153431351 is an equidigital number, since it uses as much as digits as its factorization.

2153431351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675520.

The product of its digits is 5400, while the sum is 28.

The square root of 2153431351 is about 46405.0789353924. The cubic root of 2153431351 is about 1291.3491385669.

Adding to 2153431351 its reverse (1531343512), we get a palindrome (3684774863).

The spelling of 2153431351 in words is "two billion, one hundred fifty-three million, four hundred thirty-one thousand, three hundred fifty-one".