230544531 has 24 divisors (see below), whose sum is σ = 402970464. Its totient is φ = 123989760.

The previous prime is 230544527. The next prime is 230544533. The reversal of 230544531 is 135445032.

It is not a de Polignac number, because 230544531 - 2² = 230544527 is a prime.

It is a super-2 number, since 2×230544531² = 106301561548019922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230544495 and 230544504.

It is not an unprimeable number, because it can be changed into a prime (230544533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106560 + ... + 108701.

It is an arithmetic number, because the mean of its divisors is an integer number (16790436).

Almost surely, 2^230544531 is an apocalyptic number.

230544531 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

230544531 is a deficient number, since it is larger than the sum of its proper divisors (172425933).

230544531 is a wasteful number, since it uses less digits than its factorization.

230544531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215291 (or 215288 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 230544531 is about 15183.6929302459. The cubic root of 230544531 is about 613.1757083194.

Adding to 230544531 its reverse (135445032), we get a palindrome (365989563).

The spelling of 230544531 in words is "two hundred thirty million, five hundred forty-four thousand, five hundred thirty-one".