234148231 has 4 divisors (see below), whose sum is σ = 236779200. Its totient is φ = 231517264.

The previous prime is 234148193. The next prime is 234148283. The reversal of 234148231 is 132841432.

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

It is a cyclic number.

It is not a de Polignac number, because 234148231 - 2¹⁷ = 234017159 is a prime.

It is a super-2 number, since 2×234148231² = 109650788160858722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234148231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234145231) 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, 1315351 + ... + 1315528.

It is an arithmetic number, because the mean of its divisors is an integer number (59194800).

Almost surely, 2^234148231 is an apocalyptic number.

234148231 is a deficient number, since it is larger than the sum of its proper divisors (2630969).

234148231 is an equidigital number, since it uses as much as digits as its factorization.

234148231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630968.

The product of its digits is 4608, while the sum is 28.

The square root of 234148231 is about 15301.9028555275. The cubic root of 234148231 is about 616.3541062579.

Adding to 234148231 its reverse (132841432), we get a palindrome (366989663).

The spelling of 234148231 in words is "two hundred thirty-four million, one hundred forty-eight thousand, two hundred thirty-one".