1254333220397 has 2 divisors, whose sum is σ = 1254333220398. Its totient is φ = 1254333220396.

The previous prime is 1254333220363. The next prime is 1254333220403. The reversal of 1254333220397 is 7930223334521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 995273597956 + 259059622441 = 997634^2 + 508979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254333220397 - 2⁸ = 1254333220141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254333220337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627166610198 + 627166610199.

It is an arithmetic number, because the mean of its divisors is an integer number (627166610199).

Almost surely, 2^{1254333220397} is an apocalyptic number.

It is an amenable number.

1254333220397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254333220397 is an equidigital number, since it uses as much as digits as its factorization.

1254333220397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 44.

The spelling of 1254333220397 in words is "one trillion, two hundred fifty-four billion, three hundred thirty-three million, two hundred twenty thousand, three hundred ninety-seven".