488681261 has 2 divisors, whose sum is σ = 488681262. Its totient is φ = 488681260.

The previous prime is 488681257. The next prime is 488681293. The reversal of 488681261 is 162186884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482461225 + 6220036 = 21965^2 + 2494^2 .

It is a cyclic number.

It is not a de Polignac number, because 488681261 - 2² = 488681257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488681251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244340630 + 244340631.

It is an arithmetic number, because the mean of its divisors is an integer number (244340631).

Almost surely, 2^488681261 is an apocalyptic number.

It is an amenable number.

488681261 is a deficient number, since it is larger than the sum of its proper divisors (1).

488681261 is an equidigital number, since it uses as much as digits as its factorization.

488681261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 44.

The square root of 488681261 is about 22106.1362747994. The cubic root of 488681261 is about 787.6656299303.

The spelling of 488681261 in words is "four hundred eighty-eight million, six hundred eighty-one thousand, two hundred sixty-one".