154728317 has 2 divisors, whose sum is σ = 154728318. Its totient is φ = 154728316.

The previous prime is 154728283. The next prime is 154728323. The reversal of 154728317 is 713827451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153487321 + 1240996 = 12389^2 + 1114^2 .

It is a cyclic number.

It is not a de Polignac number, because 154728317 - 2¹⁴ = 154711933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154728377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77364158 + 77364159.

It is an arithmetic number, because the mean of its divisors is an integer number (77364159).

Almost surely, 2^154728317 is an apocalyptic number.

It is an amenable number.

154728317 is a deficient number, since it is larger than the sum of its proper divisors (1).

154728317 is an equidigital number, since it uses as much as digits as its factorization.

154728317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 154728317 is about 12438.9837607419. The cubic root of 154728317 is about 536.8545034307.

The spelling of 154728317 in words is "one hundred fifty-four million, seven hundred twenty-eight thousand, three hundred seventeen".