231418148 has 12 divisors (see below), whose sum is σ = 436134300. Its totient is φ = 106808352.

The previous prime is 231418141. The next prime is 231418151. The reversal of 231418148 is 841814132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103999204 + 127418944 = 10198^2 + 11288^2 .

It is not an unprimeable number, because it can be changed into a prime (231418141) 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 3 ways as a sum of consecutive naturals, for example, 2225123 + ... + 2225226.

It is an arithmetic number, because the mean of its divisors is an integer number (36344525).

Almost surely, 2^231418148 is an apocalyptic number.

It is an amenable number.

231418148 is a deficient number, since it is larger than the sum of its proper divisors (204716152).

231418148 is a wasteful number, since it uses less digits than its factorization.

231418148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450366 (or 4450364 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 231418148 is about 15212.4339932833. The cubic root of 231418148 is about 613.9492472559.

The spelling of 231418148 in words is "two hundred thirty-one million, four hundred eighteen thousand, one hundred forty-eight".