2154535456441 has 2 divisors, whose sum is σ = 2154535456442. Its totient is φ = 2154535456440.

The previous prime is 2154535456393. The next prime is 2154535456453. The reversal of 2154535456441 is 1446545354512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1778478291216 + 376057165225 = 1333596^2 + 613235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154535456441 - 2²⁷ = 2154401238713 is a prime.

It is a super-2 number, since 2×2154535456441² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2154535451441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077267728220 + 1077267728221.

It is an arithmetic number, because the mean of its divisors is an integer number (1077267728221).

Almost surely, 2^{2154535456441} is an apocalyptic number.

It is an amenable number.

2154535456441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154535456441 is an equidigital number, since it uses as much as digits as its factorization.

2154535456441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760000, while the sum is 49.

The spelling of 2154535456441 in words is "two trillion, one hundred fifty-four billion, five hundred thirty-five million, four hundred fifty-six thousand, four hundred forty-one".