154509911047 has 2 divisors, whose sum is σ = 154509911048. Its totient is φ = 154509911046.

The previous prime is 154509911041. The next prime is 154509911051. The reversal of 154509911047 is 740119905451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154509911047 - 2¹¹ = 154509908999 is a prime.

It is a super-2 number, since 2×154509911047² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154509910988 and 154509911006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154509911041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77254955523 + 77254955524.

It is an arithmetic number, because the mean of its divisors is an integer number (77254955524).

Almost surely, 2^154509911047 is an apocalyptic number.

154509911047 is a deficient number, since it is larger than the sum of its proper divisors (1).

154509911047 is an equidigital number, since it uses as much as digits as its factorization.

154509911047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 154509911047 in words is "one hundred fifty-four billion, five hundred nine million, nine hundred eleven thousand, forty-seven".