154543057 has 2 divisors, whose sum is σ = 154543058. Its totient is φ = 154543056.

The previous prime is 154543031. The next prime is 154543061. The reversal of 154543057 is 750345451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125641681 + 28901376 = 11209^2 + 5376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154543057 is a prime.

It is not a weakly prime, because it can be changed into another prime (154543027) 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, 77271528 + 77271529.

It is an arithmetic number, because the mean of its divisors is an integer number (77271529).

Almost surely, 2^154543057 is an apocalyptic number.

It is an amenable number.

154543057 is a deficient number, since it is larger than the sum of its proper divisors (1).

154543057 is an equidigital number, since it uses as much as digits as its factorization.

154543057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 154543057 is about 12431.5347805490. The cubic root of 154543057 is about 536.6401548486.

The spelling of 154543057 in words is "one hundred fifty-four million, five hundred forty-three thousand, fifty-seven".