654011143 has 2 divisors, whose sum is σ = 654011144. Its totient is φ = 654011142.

The previous prime is 654011129. The next prime is 654011147. The reversal of 654011143 is 341110456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654011143 - 2²¹ = 651913991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654011147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327005571 + 327005572.

It is an arithmetic number, because the mean of its divisors is an integer number (327005572).

Almost surely, 2^654011143 is an apocalyptic number.

654011143 is a deficient number, since it is larger than the sum of its proper divisors (1).

654011143 is an equidigital number, since it uses as much as digits as its factorization.

654011143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 654011143 is about 25573.6415670510. The cubic root of 654011143 is about 868.0173033247.

Adding to 654011143 its reverse (341110456), we get a palindrome (995121599).

The spelling of 654011143 in words is "six hundred fifty-four million, eleven thousand, one hundred forty-three".