654134111 has 2 divisors, whose sum is σ = 654134112. Its totient is φ = 654134110.

The previous prime is 654134087. The next prime is 654134113. The reversal of 654134111 is 111431456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654134111 - 2²⁶ = 587025247 is a prime.

Together with 654134113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654134113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327067055 + 327067056.

It is an arithmetic number, because the mean of its divisors is an integer number (327067056).

Almost surely, 2^654134111 is an apocalyptic number.

654134111 is a deficient number, since it is larger than the sum of its proper divisors (1).

654134111 is an equidigital number, since it uses as much as digits as its factorization.

654134111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 654134111 is about 25576.0456482233. The cubic root of 654134111 is about 868.0717018182.

Adding to 654134111 its reverse (111431456), we get a palindrome (765565567).

The spelling of 654134111 in words is "six hundred fifty-four million, one hundred thirty-four thousand, one hundred eleven".