144775243 has 2 divisors, whose sum is σ = 144775244. Its totient is φ = 144775242.

The previous prime is 144775229. The next prime is 144775259. The reversal of 144775243 is 342577441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144775243 - 2²¹ = 142678091 is a prime.

It is not a weakly prime, because it can be changed into another prime (144775343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72387621 + 72387622.

It is an arithmetic number, because the mean of its divisors is an integer number (72387622).

Almost surely, 2^144775243 is an apocalyptic number.

144775243 is a deficient number, since it is larger than the sum of its proper divisors (1).

144775243 is an equidigital number, since it uses as much as digits as its factorization.

144775243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 37.

The square root of 144775243 is about 12032.2584330623. The cubic root of 144775243 is about 525.0872030506.

The spelling of 144775243 in words is "one hundred forty-four million, seven hundred seventy-five thousand, two hundred forty-three".