1074543154021 has 2 divisors, whose sum is σ = 1074543154022. Its totient is φ = 1074543154020.

The previous prime is 1074543154007. The next prime is 1074543154033. The reversal of 1074543154021 is 1204513454701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1069714432900 + 4828721121 = 1034270^2 + 69489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1074543154021 - 2²⁵ = 1074509599589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074543154721) 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, 537271577010 + 537271577011.

It is an arithmetic number, because the mean of its divisors is an integer number (537271577011).

Almost surely, 2^{1074543154021} is an apocalyptic number.

It is an amenable number.

1074543154021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074543154021 is an equidigital number, since it uses as much as digits as its factorization.

1074543154021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 1074543154021 in words is "one trillion, seventy-four billion, five hundred forty-three million, one hundred fifty-four thousand, twenty-one".