145218943 has 2 divisors, whose sum is σ = 145218944. Its totient is φ = 145218942.

The previous prime is 145218923. The next prime is 145218961. The reversal of 145218943 is 349812541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145218943 - 2²¹ = 143121791 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 (145218923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72609471 + 72609472.

It is an arithmetic number, because the mean of its divisors is an integer number (72609472).

Almost surely, 2^145218943 is an apocalyptic number.

145218943 is a deficient number, since it is larger than the sum of its proper divisors (1).

145218943 is an equidigital number, since it uses as much as digits as its factorization.

145218943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 145218943 is about 12050.6822628430. The cubic root of 145218943 is about 525.6230764081.

The spelling of 145218943 in words is "one hundred forty-five million, two hundred eighteen thousand, nine hundred forty-three".