2148322451 has 24 divisors (see below), whose sum is σ = 2390986752. Its totient is φ = 1928718000.

The previous prime is 2148322433. The next prime is 2148322471. The reversal of 2148322451 is 1542238412.

It is not a de Polignac number, because 2148322451 - 2³⁰ = 1074580627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2148322411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5609006 + ... + 5609388.

It is an arithmetic number, because the mean of its divisors is an integer number (99624448).

Almost surely, 2^2148322451 is an apocalyptic number.

2148322451 is a deficient number, since it is larger than the sum of its proper divisors (242664301).

2148322451 is a wasteful number, since it uses less digits than its factorization.

2148322451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 852 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 2148322451 is about 46349.9994714132. Note that the first 3 decimals coincide. The cubic root of 2148322451 is about 1290.3271111248.

It can be divided in two parts, 21483 and 22451, that added together give a palindrome (43934).

The spelling of 2148322451 in words is "two billion, one hundred forty-eight million, three hundred twenty-two thousand, four hundred fifty-one".