654343229 has 2 divisors, whose sum is σ = 654343230. Its totient is φ = 654343228.

The previous prime is 654343213. The next prime is 654343267. The reversal of 654343229 is 922343456.

It is an a-pointer prime, because the next prime (654343267) can be obtained adding 654343229 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634939204 + 19404025 = 25198^2 + 4405^2 .

It is a cyclic number.

It is not a de Polignac number, because 654343229 - 2⁴ = 654343213 is a prime.

It is a super-2 number, since 2×654343229² = 856330122676292882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 654343192 and 654343201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654343289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327171614 + 327171615.

It is an arithmetic number, because the mean of its divisors is an integer number (327171615).

Almost surely, 2^654343229 is an apocalyptic number.

It is an amenable number.

654343229 is a deficient number, since it is larger than the sum of its proper divisors (1).

654343229 is an equidigital number, since it uses as much as digits as its factorization.

654343229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 654343229 is about 25580.1334828417. The cubic root of 654343229 is about 868.1641956327.

The spelling of 654343229 in words is "six hundred fifty-four million, three hundred forty-three thousand, two hundred twenty-nine".