9275149561261 has 2 divisors, whose sum is σ = 9275149561262. Its totient is φ = 9275149561260.

The previous prime is 9275149561247. The next prime is 9275149561343. The reversal of 9275149561261 is 1621659415729.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4949868528900 + 4325281032361 = 2224830^2 + 2079731^2 .

It is a cyclic number.

It is not a de Polignac number, because 9275149561261 - 2¹⁵ = 9275149528493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9275149561196 and 9275149561205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9275149561231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4637574780630 + 4637574780631.

It is an arithmetic number, because the mean of its divisors is an integer number (4637574780631).

Almost surely, 2^{9275149561261} is an apocalyptic number.

It is an amenable number.

9275149561261 is a deficient number, since it is larger than the sum of its proper divisors (1).

9275149561261 is an equidigital number, since it uses as much as digits as its factorization.

9275149561261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 58.

The spelling of 9275149561261 in words is "nine trillion, two hundred seventy-five billion, one hundred forty-nine million, five hundred sixty-one thousand, two hundred sixty-one".