154020847 has 2 divisors, whose sum is σ = 154020848. Its totient is φ = 154020846.

The previous prime is 154020793. The next prime is 154020851. The reversal of 154020847 is 748020451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154020847 - 2²³ = 145632239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154050847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77010423 + 77010424.

It is an arithmetic number, because the mean of its divisors is an integer number (77010424).

Almost surely, 2^154020847 is an apocalyptic number.

154020847 is a deficient number, since it is larger than the sum of its proper divisors (1).

154020847 is an equidigital number, since it uses as much as digits as its factorization.

154020847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 154020847 is about 12410.5135671333. The cubic root of 154020847 is about 536.0350266243.

The spelling of 154020847 in words is "one hundred fifty-four million, twenty thousand, eight hundred forty-seven".