154504311043493 has 2 divisors, whose sum is σ = 154504311043494. Its totient is φ = 154504311043492.

The previous prime is 154504311043363. The next prime is 154504311043513. The reversal of 154504311043493 is 394340113405451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154450784519329 + 53526524164 = 12427823^2 + 231358^2 .

It is a cyclic number.

It is not a de Polignac number, because 154504311043493 - 2³⁰ = 154503237301669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154504311049493) 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, 77252155521746 + 77252155521747.

It is an arithmetic number, because the mean of its divisors is an integer number (77252155521747).

Almost surely, 2^{154504311043493} is an apocalyptic number.

It is an amenable number.

154504311043493 is a deficient number, since it is larger than the sum of its proper divisors (1).

154504311043493 is an equidigital number, since it uses as much as digits as its factorization.

154504311043493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 154504311043493 in words is "one hundred fifty-four trillion, five hundred four billion, three hundred eleven million, forty-three thousand, four hundred ninety-three".