243948141 has 24 divisors (see below), whose sum is σ = 362793600. Its totient is φ = 157843296.

The previous prime is 243948137. The next prime is 243948157. The reversal of 243948141 is 141849342.

It is a happy number.

It is not a de Polignac number, because 243948141 - 2² = 243948137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243948096 and 243948105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243948101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198856 + ... + 200078.

It is an arithmetic number, because the mean of its divisors is an integer number (15116400).

Almost surely, 2^243948141 is an apocalyptic number.

It is an amenable number.

243948141 is a deficient number, since it is larger than the sum of its proper divisors (118845459).

243948141 is a wasteful number, since it uses less digits than its factorization.

243948141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1862 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 243948141 is about 15618.8392974638. The cubic root of 243948141 is about 624.8357038013.

The spelling of 243948141 in words is "two hundred forty-three million, nine hundred forty-eight thousand, one hundred forty-one".