154005244404091 has 2 divisors, whose sum is σ = 154005244404092. Its totient is φ = 154005244404090.

The previous prime is 154005244404083. The next prime is 154005244404181. The reversal of 154005244404091 is 190404442500451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154005244404091 - 2³ = 154005244404083 is a prime.

It is not a weakly prime, because it can be changed into another prime (154005244404491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77002622202045 + 77002622202046.

It is an arithmetic number, because the mean of its divisors is an integer number (77002622202046).

Almost surely, 2^{154005244404091} is an apocalyptic number.

154005244404091 is a deficient number, since it is larger than the sum of its proper divisors (1).

154005244404091 is an equidigital number, since it uses as much as digits as its factorization.

154005244404091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 154005244404091 in words is "one hundred fifty-four trillion, five billion, two hundred forty-four million, four hundred four thousand, ninety-one".