231400500 has 48 divisors (see below), whose sum is σ = 673842624. Its totient is φ = 61706400.

The previous prime is 231400489. The next prime is 231400529. The reversal of 231400500 is 5004132.

231400500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231400500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75634 + ... + 78633.

It is an arithmetic number, because the mean of its divisors is an integer number (14038388).

Almost surely, 2^231400500 is an apocalyptic number.

231400500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231400500 is an abundant number, since it is smaller than the sum of its proper divisors (442442124).

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

231400500 is a wasteful number, since it uses less digits than its factorization.

231400500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154289 (or 154277 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 231400500 is about 15211.8539304057. The cubic root of 231400500 is about 613.9336402233.

Adding to 231400500 its reverse (5004132), we get a palindrome (236404632).

The spelling of 231400500 in words is "two hundred thirty-one million, four hundred thousand, five hundred".