1254944094161 has 4 divisors (see below), whose sum is σ = 1328764335012. Its totient is φ = 1181123853312.

The previous prime is 1254944094137. The next prime is 1254944094167. The reversal of 1254944094161 is 1614904494521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1068238005136 + 186706089025 = 1033556^2 + 432095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254944094161 - 2¹⁸ = 1254943832017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254944094167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36910120400 + ... + 36910120433.

It is an arithmetic number, because the mean of its divisors is an integer number (332191083753).

Almost surely, 2^{1254944094161} is an apocalyptic number.

It is an amenable number.

1254944094161 is a deficient number, since it is larger than the sum of its proper divisors (73820240851).

1254944094161 is an equidigital number, since it uses as much as digits as its factorization.

1254944094161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73820240850.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 1254944094161 in words is "one trillion, two hundred fifty-four billion, nine hundred forty-four million, ninety-four thousand, one hundred sixty-one".