2139458241 has 4 divisors (see below), whose sum is σ = 2852610992. Its totient is φ = 1426305492.

The previous prime is 2139458239. The next prime is 2139458263. The reversal of 2139458241 is 1428549312.

2139458241 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 2139458241 - 2¹ = 2139458239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2139458241.

It is not an unprimeable number, because it can be changed into a prime (2139458221) 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, 356576371 + ... + 356576376.

It is an arithmetic number, because the mean of its divisors is an integer number (713152748).

Almost surely, 2^2139458241 is an apocalyptic number.

It is an amenable number.

2139458241 is a deficient number, since it is larger than the sum of its proper divisors (713152751).

2139458241 is an equidigital number, since it uses as much as digits as its factorization.

2139458241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713152750.

The product of its digits is 69120, while the sum is 39.

The square root of 2139458241 is about 46254.2780832217. The cubic root of 2139458241 is about 1288.5499884310.

The spelling of 2139458241 in words is "two billion, one hundred thirty-nine million, four hundred fifty-eight thousand, two hundred forty-one".