654543231 has 8 divisors (see below), whose sum is σ = 924061104. Its totient is φ = 410693760.

The previous prime is 654543193. The next prime is 654543247. The reversal of 654543231 is 132345456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 654543231 - 2⁹ = 654542719 is a prime.

It is a super-2 number, since 2×654543231² = 856853682495838722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 654543192 and 654543201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654543271) 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, 6417040 + ... + 6417141.

It is an arithmetic number, because the mean of its divisors is an integer number (115507638).

Almost surely, 2^654543231 is an apocalyptic number.

654543231 is a deficient number, since it is larger than the sum of its proper divisors (269517873).

654543231 is a wasteful number, since it uses less digits than its factorization.

654543231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834201.

The product of its digits is 43200, while the sum is 33.

The square root of 654543231 is about 25584.0425070003. The cubic root of 654543231 is about 868.2526389655.

Adding to 654543231 its reverse (132345456), we get a palindrome (786888687).

The spelling of 654543231 in words is "six hundred fifty-four million, five hundred forty-three thousand, two hundred thirty-one".