326144263 has 2 divisors, whose sum is σ = 326144264. Its totient is φ = 326144262.

The previous prime is 326144257. The next prime is 326144317. The reversal of 326144263 is 362441623.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326144263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326144243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163072131 + 163072132.

It is an arithmetic number, because the mean of its divisors is an integer number (163072132).

Almost surely, 2^326144263 is an apocalyptic number.

326144263 is a deficient number, since it is larger than the sum of its proper divisors (1).

326144263 is an equidigital number, since it uses as much as digits as its factorization.

326144263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

The square root of 326144263 is about 18059.4646376907. The cubic root of 326144263 is about 688.3403809402.

Adding to 326144263 its reverse (362441623), we get a palindrome (688585886).

It can be divided in two parts, 3261 and 44263, that added together give a square (47524 = 218²).

The spelling of 326144263 in words is "three hundred twenty-six million, one hundred forty-four thousand, two hundred sixty-three".