1054254212161 has 2 divisors, whose sum is σ = 1054254212162. Its totient is φ = 1054254212160.

The previous prime is 1054254212117. The next prime is 1054254212171. The reversal of 1054254212161 is 1612124524501.

1054254212161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672923261761 + 381330950400 = 820319^2 + 617520^2 .

It is an emirp because it is prime and its reverse (1612124524501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1054254212161 - 2²¹ = 1054252115009 is a prime.

It is a super-2 number, since 2×1054254212161² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054254212171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527127106080 + 527127106081.

It is an arithmetic number, because the mean of its divisors is an integer number (527127106081).

Almost surely, 2^{1054254212161} is an apocalyptic number.

It is an amenable number.

1054254212161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054254212161 is an equidigital number, since it uses as much as digits as its factorization.

1054254212161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 1054254212161 its reverse (1612124524501), we get a palindrome (2666378736662).

The spelling of 1054254212161 in words is "one trillion, fifty-four billion, two hundred fifty-four million, two hundred twelve thousand, one hundred sixty-one".