261307483 has 2 divisors, whose sum is σ = 261307484. Its totient is φ = 261307482.

The previous prime is 261307481. The next prime is 261307511. The reversal of 261307483 is 384703162.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261307483 - 2¹ = 261307481 is a prime.

Together with 261307481, it forms a pair of twin primes.

It is equal to p_14263387 and since 261307483 and 14263387 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (261307481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130653741 + 130653742.

It is an arithmetic number, because the mean of its divisors is an integer number (130653742).

Almost surely, 2^261307483 is an apocalyptic number.

261307483 is a deficient number, since it is larger than the sum of its proper divisors (1).

261307483 is an equidigital number, since it uses as much as digits as its factorization.

261307483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 261307483 is about 16165.0079802022. The cubic root of 261307483 is about 639.3185153218.

The spelling of 261307483 in words is "two hundred sixty-one million, three hundred seven thousand, four hundred eighty-three".