234131540 has 24 divisors (see below), whose sum is σ = 494938752. Its totient is φ = 93031200.

The previous prime is 234131539. The next prime is 234131549. The reversal of 234131540 is 45131432.

234131540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234131549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35744 + ... + 41783.

It is an arithmetic number, because the mean of its divisors is an integer number (20622448).

Almost surely, 2^234131540 is an apocalyptic number.

234131540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234131540 is an abundant number, since it is smaller than the sum of its proper divisors (260807212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234131540 is a wasteful number, since it uses less digits than its factorization.

234131540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77687 (or 77685 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 234131540 is about 15301.3574561213. The cubic root of 234131540 is about 616.3394605343.

Adding to 234131540 its reverse (45131432), we get a palindrome (279262972).

The spelling of 234131540 in words is "two hundred thirty-four million, one hundred thirty-one thousand, five hundred forty".