154543117031 has 2 divisors, whose sum is σ = 154543117032. Its totient is φ = 154543117030.

The previous prime is 154543116989. The next prime is 154543117033. The reversal of 154543117031 is 130711345451.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154543117031 is a prime.

It is a super-2 number, since 2×154543117031² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 154543117033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 154543116982 and 154543117000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154543117033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77271558515 + 77271558516.

It is an arithmetic number, because the mean of its divisors is an integer number (77271558516).

Almost surely, 2^154543117031 is an apocalyptic number.

154543117031 is a deficient number, since it is larger than the sum of its proper divisors (1).

154543117031 is an equidigital number, since it uses as much as digits as its factorization.

154543117031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 154543117031 in words is "one hundred fifty-four billion, five hundred forty-three million, one hundred seventeen thousand, thirty-one".