231838541 has 6 divisors (see below), whose sum is σ = 254830926. Its totient is φ = 210762200.

The previous prime is 231838493. The next prime is 231838547. The reversal of 231838541 is 145838132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 178329316 + 53509225 = 13354^2 + 7315^2 .

It is not a de Polignac number, because 231838541 - 2²² = 227644237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231838547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 957890 + ... + 958131.

It is an arithmetic number, because the mean of its divisors is an integer number (42471821).

Almost surely, 2^231838541 is an apocalyptic number.

It is an amenable number.

231838541 is a deficient number, since it is larger than the sum of its proper divisors (22992385).

231838541 is a wasteful number, since it uses less digits than its factorization.

231838541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916043 (or 1916032 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 231838541 is about 15226.2451379189. The cubic root of 231838541 is about 614.3207880332.

The spelling of 231838541 in words is "two hundred thirty-one million, eight hundred thirty-eight thousand, five hundred forty-one".