839453141 has 4 divisors (see below), whose sum is σ = 839556972. Its totient is φ = 839349312.

The previous prime is 839453137. The next prime is 839453143. The reversal of 839453141 is 141354938.

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

It can be written as a sum of positive squares in 2 ways, for example, as 534950641 + 304502500 = 23129^2 + 17450^2 .

It is a cyclic number.

It is not a de Polignac number, because 839453141 - 2² = 839453137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 839453095 and 839453104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839453143) 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, 38660 + ... + 56333.

It is an arithmetic number, because the mean of its divisors is an integer number (209889243).

Almost surely, 2^839453141 is an apocalyptic number.

It is an amenable number.

839453141 is a deficient number, since it is larger than the sum of its proper divisors (103831).

839453141 is an equidigital number, since it uses as much as digits as its factorization.

839453141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103830.

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

The square root of 839453141 is about 28973.3177423643. The cubic root of 839453141 is about 943.3339965811. Note that the first 3 decimals are identical.

The spelling of 839453141 in words is "eight hundred thirty-nine million, four hundred fifty-three thousand, one hundred forty-one".