2148697625 has 8 divisors (see below), whose sum is σ = 2681574792. Its totient is φ = 1718958000.

The previous prime is 2148697613. The next prime is 2148697687. The reversal of 2148697625 is 5267968412.

It can be written as a sum of positive squares in 4 ways, for example, as 260273689 + 1888423936 = 16133^2 + 43456^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2148697625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8594666 + ... + 8594915.

It is an arithmetic number, because the mean of its divisors is an integer number (335196849).

Almost surely, 2^2148697625 is an apocalyptic number.

2148697625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2148697625 is a deficient number, since it is larger than the sum of its proper divisors (532877167).

2148697625 is an equidigital number, since it uses as much as digits as its factorization.

2148697625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17189596 (or 17189586 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 2148697625 is about 46354.0464792449. The cubic root of 2148697625 is about 1290.4022191866.

The spelling of 2148697625 in words is "two billion, one hundred forty-eight million, six hundred ninety-seven thousand, six hundred twenty-five".