231542241 has 8 divisors (see below), whose sum is σ = 352826304. Its totient is φ = 132309840.

The previous prime is 231542237. The next prime is 231542243. The reversal of 231542241 is 142245132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231542241 - 2² = 231542237 is a prime.

It is a super-2 number, since 2×231542241² = 107223618734604162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231542243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5512890 + ... + 5512931.

It is an arithmetic number, because the mean of its divisors is an integer number (44103288).

Almost surely, 2^231542241 is an apocalyptic number.

231542241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231542241 is a deficient number, since it is larger than the sum of its proper divisors (121284063).

231542241 is a wasteful number, since it uses less digits than its factorization.

231542241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11025831.

The product of its digits is 1920, while the sum is 24.

The square root of 231542241 is about 15216.5121167763. The cubic root of 231542241 is about 614.0589666690.

Adding to 231542241 its reverse (142245132), we get a palindrome (373787373).

The spelling of 231542241 in words is "two hundred thirty-one million, five hundred forty-two thousand, two hundred forty-one".