2148509548 has 48 divisors (see below), whose sum is σ = 3933873216. Its totient is φ = 1026005760.

The previous prime is 2148509513. The next prime is 2148509563. The reversal of 2148509548 is 8459058412.

It is a junction number, because it is equal to n+sod(n) for n = 2148509498 and 2148509507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331190 + ... + 1332802.

It is an arithmetic number, because the mean of its divisors is an integer number (81955692).

Almost surely, 2^2148509548 is an apocalyptic number.

It is an amenable number.

2148509548 is a deficient number, since it is larger than the sum of its proper divisors (1785363668).

2148509548 is a wasteful number, since it uses less digits than its factorization.

2148509548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The square root of 2148509548 is about 46352.0177338592. The cubic root of 2148509548 is about 1290.3645681530.

The spelling of 2148509548 in words is "two billion, one hundred forty-eight million, five hundred nine thousand, five hundred forty-eight".