2148982509 has 8 divisors (see below), whose sum is σ = 2868205312. Its totient is φ = 1431207360.

The previous prime is 2148982469. The next prime is 2148982513. The reversal of 2148982509 is 9052898412.

2148982509 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 2148982509 - 2⁹ = 2148981997 is a prime.

It is a super-3 number, since 3×2148982509³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148982109) 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, 358444 + ... + 364389.

It is an arithmetic number, because the mean of its divisors is an integer number (358525664).

Almost surely, 2^2148982509 is an apocalyptic number.

It is an amenable number.

2148982509 is a deficient number, since it is larger than the sum of its proper divisors (719222803).

2148982509 is an equidigital number, since it uses as much as digits as its factorization.

2148982509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723827.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 2148982509 is about 46357.1192914314. The cubic root of 2148982509 is about 1290.4592457774.

The spelling of 2148982509 in words is "two billion, one hundred forty-eight million, nine hundred eighty-two thousand, five hundred nine".