1254541312091 has 2 divisors, whose sum is σ = 1254541312092. Its totient is φ = 1254541312090.

The previous prime is 1254541312049. The next prime is 1254541312181. The reversal of 1254541312091 is 1902131454521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1254541312091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1254541312691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627270656045 + 627270656046.

It is an arithmetic number, because the mean of its divisors is an integer number (627270656046).

Almost surely, 2^{1254541312091} is an apocalyptic number.

1254541312091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254541312091 is an equidigital number, since it uses as much as digits as its factorization.

1254541312091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 1254541312091 in words is "one trillion, two hundred fifty-four billion, five hundred forty-one million, three hundred twelve thousand, ninety-one".