654601271 has 2 divisors, whose sum is σ = 654601272. Its totient is φ = 654601270.

The previous prime is 654601261. The next prime is 654601333. The reversal of 654601271 is 172106456.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654601271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654601261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327300635 + 327300636.

It is an arithmetic number, because the mean of its divisors is an integer number (327300636).

Almost surely, 2^654601271 is an apocalyptic number.

654601271 is a deficient number, since it is larger than the sum of its proper divisors (1).

654601271 is an equidigital number, since it uses as much as digits as its factorization.

654601271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 654601271 is about 25585.1767826607. The cubic root of 654601271 is about 868.2783015911.

The spelling of 654601271 in words is "six hundred fifty-four million, six hundred one thousand, two hundred seventy-one".