2125348139 has 4 divisors (see below), whose sum is σ = 2152251360. Its totient is φ = 2098444920.

The previous prime is 2125348081. The next prime is 2125348157. The reversal of 2125348139 is 9318435212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2125348139 - 2²⁸ = 1856912683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125348039) 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, 13451492 + ... + 13451649.

It is an arithmetic number, because the mean of its divisors is an integer number (538062840).

Almost surely, 2^2125348139 is an apocalyptic number.

2125348139 is a deficient number, since it is larger than the sum of its proper divisors (26903221).

2125348139 is an equidigital number, since it uses as much as digits as its factorization.

2125348139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26903220.

The product of its digits is 51840, while the sum is 38.

The square root of 2125348139 is about 46101.4982294502. The cubic root of 2125348139 is about 1285.7110003896.

The spelling of 2125348139 in words is "two billion, one hundred twenty-five million, three hundred forty-eight thousand, one hundred thirty-nine".