1307725222261 has 2 divisors, whose sum is σ = 1307725222262. Its totient is φ = 1307725222260.

The previous prime is 1307725222213. The next prime is 1307725222273. The reversal of 1307725222261 is 1622225277031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1277137311025 + 30587911236 = 1130105^2 + 174894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307725222261 - 2¹⁵ = 1307725189493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1307725220261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653862611130 + 653862611131.

It is an arithmetic number, because the mean of its divisors is an integer number (653862611131).

Almost surely, 2^{1307725222261} is an apocalyptic number.

It is an amenable number.

1307725222261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307725222261 is an equidigital number, since it uses as much as digits as its factorization.

1307725222261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 1307725222261 in words is "one trillion, three hundred seven billion, seven hundred twenty-five million, two hundred twenty-two thousand, two hundred sixty-one".