1054153240981 has 2 divisors, whose sum is σ = 1054153240982. Its totient is φ = 1054153240980.

The previous prime is 1054153240957. The next prime is 1054153240997. The reversal of 1054153240981 is 1890423514501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860504837956 + 193648403025 = 927634^2 + 440055^2 .

It is an emirp because it is prime and its reverse (1890423514501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1054153240981 - 2⁵ = 1054153240949 is a prime.

It is a super-2 number, since 2×1054153240981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1054153240951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527076620490 + 527076620491.

It is an arithmetic number, because the mean of its divisors is an integer number (527076620491).

Almost surely, 2^{1054153240981} is an apocalyptic number.

It is an amenable number.

1054153240981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054153240981 is an equidigital number, since it uses as much as digits as its factorization.

1054153240981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 1054153240981 in words is "one trillion, fifty-four billion, one hundred fifty-three million, two hundred forty thousand, nine hundred eighty-one".