154125457 has 2 divisors, whose sum is σ = 154125458. Its totient is φ = 154125456.

The previous prime is 154125443. The next prime is 154125481. The reversal of 154125457 is 754521451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119268241 + 34857216 = 10921^2 + 5904^2 .

It is a cyclic number.

It is not a de Polignac number, because 154125457 - 2⁷ = 154125329 is a prime.

It is equal to p_8663191 and since 154125457 and 8663191 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (154125497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77062728 + 77062729.

It is an arithmetic number, because the mean of its divisors is an integer number (77062729).

Almost surely, 2^154125457 is an apocalyptic number.

It is an amenable number.

154125457 is a deficient number, since it is larger than the sum of its proper divisors (1).

154125457 is an equidigital number, since it uses as much as digits as its factorization.

154125457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The square root of 154125457 is about 12414.7274235079. The cubic root of 154125457 is about 536.1563563768.

The spelling of 154125457 in words is "one hundred fifty-four million, one hundred twenty-five thousand, four hundred fifty-seven".