231226000 has 40 divisors (see below), whose sum is σ = 559109304. Its totient is φ = 92489600.

The previous prime is 231225983. The next prime is 231226001. The reversal of 231226000 is 622132.

It can be written as a sum of positive squares in 4 ways, for example, as 1157776 + 230068224 = 1076^2 + 15168^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (231226001) 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, 55807 + ... + 59806.

Almost surely, 2^231226000 is an apocalyptic number.

231226000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231226000 is an abundant number, since it is smaller than the sum of its proper divisors (327883304).

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

231226000 is a wasteful number, since it uses less digits than its factorization.

231226000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115636 (or 115620 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231226000 is about 15206.1171901311. The cubic root of 231226000 is about 613.7792781815.

Adding to 231226000 its reverse (622132), we get a palindrome (231848132).

The spelling of 231226000 in words is "two hundred thirty-one million, two hundred twenty-six thousand".