1543322451401 has 2 divisors, whose sum is σ = 1543322451402. Its totient is φ = 1543322451400.

The previous prime is 1543322451367. The next prime is 1543322451467. The reversal of 1543322451401 is 1041542233451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1387790022025 + 155532429376 = 1178045^2 + 394376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1543322451401 - 2⁶ = 1543322451337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1543322451901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771661225700 + 771661225701.

It is an arithmetic number, because the mean of its divisors is an integer number (771661225701).

Almost surely, 2^{1543322451401} is an apocalyptic number.

It is an amenable number.

1543322451401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1543322451401 is an equidigital number, since it uses as much as digits as its factorization.

1543322451401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1543322451401 its reverse (1041542233451), we get a palindrome (2584864684852).

The spelling of 1543322451401 in words is "one trillion, five hundred forty-three billion, three hundred twenty-two million, four hundred fifty-one thousand, four hundred one".