1254450052091 has 2 divisors, whose sum is σ = 1254450052092. Its totient is φ = 1254450052090.

The previous prime is 1254450052081. The next prime is 1254450052147. The reversal of 1254450052091 is 1902500544521.

It is a weak prime.

It is an emirp because it is prime and its reverse (1902500544521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1254450052091 is a prime.

It is a super-2 number, since 2×1254450052091² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1254450052001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627225026045 + 627225026046.

It is an arithmetic number, because the mean of its divisors is an integer number (627225026046).

Almost surely, 2^{1254450052091} is an apocalyptic number.

1254450052091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254450052091 is an equidigital number, since it uses as much as digits as its factorization.

1254450052091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 1254450052091 in words is "one trillion, two hundred fifty-four billion, four hundred fifty million, fifty-two thousand, ninety-one".