2153315251 has 8 divisors (see below), whose sum is σ = 2297387664. Its totient is φ = 2011176960.

The previous prime is 2153315147. The next prime is 2153315261. The reversal of 2153315251 is 1525133512.

2153315251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2153315251 - 2⁹ = 2153314739 is a prime.

It is a super-3 number, since 3×2153315251³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153315261) 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, 481230 + ... + 485683.

It is an arithmetic number, because the mean of its divisors is an integer number (287173458).

Almost surely, 2^2153315251 is an apocalyptic number.

2153315251 is a deficient number, since it is larger than the sum of its proper divisors (144072413).

2153315251 is a wasteful number, since it uses less digits than its factorization.

2153315251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967061.

The product of its digits is 4500, while the sum is 28.

The square root of 2153315251 is about 46403.8279778727. The cubic root of 2153315251 is about 1291.3259309036.

Adding to 2153315251 its reverse (1525133512), we get a palindrome (3678448763).

It can be divided in two parts, 21533152 and 51, that added together give a triangular number (21533203 = T₆₅₆₂).

The spelling of 2153315251 in words is "two billion, one hundred fifty-three million, three hundred fifteen thousand, two hundred fifty-one".