655144943 has 2 divisors, whose sum is σ = 655144944. Its totient is φ = 655144942.

The previous prime is 655144921. The next prime is 655144957. The reversal of 655144943 is 349441556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655144943 - 2¹⁴ = 655128559 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655144943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655144913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327572471 + 327572472.

It is an arithmetic number, because the mean of its divisors is an integer number (327572472).

Almost surely, 2^655144943 is an apocalyptic number.

655144943 is a deficient number, since it is larger than the sum of its proper divisors (1).

655144943 is an equidigital number, since it uses as much as digits as its factorization.

655144943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 655144943 is about 25595.7993233265. The cubic root of 655144943 is about 868.5186147885.

The spelling of 655144943 in words is "six hundred fifty-five million, one hundred forty-four thousand, nine hundred forty-three".