654332243 has 16 divisors (see below), whose sum is σ = 690076800. Its totient is φ = 619801920.

The previous prime is 654332209. The next prime is 654332257. The reversal of 654332243 is 342233456.

It is not a de Polignac number, because 654332243 - 2⁸ = 654331987 is a prime.

It is a super-2 number, since 2×654332243² = 856301368458822098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654332443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199148 + ... + 202406.

It is an arithmetic number, because the mean of its divisors is an integer number (43129800).

Almost surely, 2^654332243 is an apocalyptic number.

654332243 is a deficient number, since it is larger than the sum of its proper divisors (35744557).

654332243 is a wasteful number, since it uses less digits than its factorization.

654332243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442.

The product of its digits is 51840, while the sum is 32.

The square root of 654332243 is about 25579.9187449843. The cubic root of 654332243 is about 868.1593369669.

Adding to 654332243 its reverse (342233456), we get a palindrome (996565699).

It can be divided in two parts, 65433 and 2243, that added together give a palindrome (67676).

The spelling of 654332243 in words is "six hundred fifty-four million, three hundred thirty-two thousand, two hundred forty-three".