231555200 has 72 divisors (see below), whose sum is σ = 574148055. Its totient is φ = 92277760.

The previous prime is 231555173. The next prime is 231555257. The reversal of 231555200 is 2555132.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 3182656 + 228372544 = 1784^2 + 15112^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10760.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 860666 + ... + 860934.

Almost surely, 2^231555200 is an apocalyptic number.

231555200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231555200

231555200 is an abundant number, since it is smaller than the sum of its proper divisors (342592855).

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

231555200 is an frugal number, since it uses more digits than its factorization.

231555200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 231555200 is about 15216.9379311345. The cubic root of 231555200 is about 614.0704223781.

The spelling of 231555200 in words is "two hundred thirty-one million, five hundred fifty-five thousand, two hundred".