154054530991 has 2 divisors, whose sum is σ = 154054530992. Its totient is φ = 154054530990.

The previous prime is 154054530983. The next prime is 154054531049. The reversal of 154054530991 is 199035450451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154054530991 - 2³ = 154054530983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154054530901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77027265495 + 77027265496.

It is an arithmetic number, because the mean of its divisors is an integer number (77027265496).

Almost surely, 2^154054530991 is an apocalyptic number.

154054530991 is a deficient number, since it is larger than the sum of its proper divisors (1).

154054530991 is an equidigital number, since it uses as much as digits as its factorization.

154054530991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 46.

The spelling of 154054530991 in words is "one hundred fifty-four billion, fifty-four million, five hundred thirty thousand, nine hundred ninety-one".