261323483 has 2 divisors, whose sum is σ = 261323484. Its totient is φ = 261323482.

The previous prime is 261323471. The next prime is 261323509. The reversal of 261323483 is 384323162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261323483 - 2¹⁶ = 261257947 is a prime.

It is not a weakly prime, because it can be changed into another prime (261323423) 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, 130661741 + 130661742.

It is an arithmetic number, because the mean of its divisors is an integer number (130661742).

Almost surely, 2^261323483 is an apocalyptic number.

261323483 is a deficient number, since it is larger than the sum of its proper divisors (1).

261323483 is an equidigital number, since it uses as much as digits as its factorization.

261323483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 261323483 is about 16165.5028687635. The cubic root of 261323483 is about 639.3315636629.

The spelling of 261323483 in words is "two hundred sixty-one million, three hundred twenty-three thousand, four hundred eighty-three".