2148582549 has 4 divisors (see below), whose sum is σ = 2864776736. Its totient is φ = 1432388364.

The previous prime is 2148582539. The next prime is 2148582551. The reversal of 2148582549 is 9452858412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2148582549 - 2⁵ = 2148582517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2148582498 and 2148582507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148582509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358097089 + ... + 358097094.

It is an arithmetic number, because the mean of its divisors is an integer number (716194184).

Almost surely, 2^2148582549 is an apocalyptic number.

It is an amenable number.

2148582549 is a deficient number, since it is larger than the sum of its proper divisors (716194187).

2148582549 is an equidigital number, since it uses as much as digits as its factorization.

2148582549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716194186.

The product of its digits is 921600, while the sum is 48.

The square root of 2148582549 is about 46352.8051901932. The cubic root of 2148582549 is about 1290.3791824449.

The spelling of 2148582549 in words is "two billion, one hundred forty-eight million, five hundred eighty-two thousand, five hundred forty-nine".