145256543 has 2 divisors, whose sum is σ = 145256544. Its totient is φ = 145256542.

The previous prime is 145256521. The next prime is 145256549. The reversal of 145256543 is 345652541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145256543 - 2⁶ = 145256479 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145256549) 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, 72628271 + 72628272.

It is an arithmetic number, because the mean of its divisors is an integer number (72628272).

Almost surely, 2^145256543 is an apocalyptic number.

145256543 is a deficient number, since it is larger than the sum of its proper divisors (1).

145256543 is an equidigital number, since it uses as much as digits as its factorization.

145256543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

The square root of 145256543 is about 12052.2422395171. The cubic root of 145256543 is about 525.6684371620.

The spelling of 145256543 in words is "one hundred forty-five million, two hundred fifty-six thousand, five hundred forty-three".