144202273 has 2 divisors, whose sum is σ = 144202274. Its totient is φ = 144202272.

The previous prime is 144202243. The next prime is 144202307. The reversal of 144202273 is 372202441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126495009 + 17707264 = 11247^2 + 4208^2 .

It is a cyclic number.

It is not a de Polignac number, because 144202273 - 2¹³ = 144194081 is a prime.

It is not a weakly prime, because it can be changed into another prime (144202213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72101136 + 72101137.

It is an arithmetic number, because the mean of its divisors is an integer number (72101137).

Almost surely, 2^144202273 is an apocalyptic number.

It is an amenable number.

144202273 is a deficient number, since it is larger than the sum of its proper divisors (1).

144202273 is an equidigital number, since it uses as much as digits as its factorization.

144202273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 144202273 is about 12008.4250840816. The cubic root of 144202273 is about 524.3935831053.

The spelling of 144202273 in words is "one hundred forty-four million, two hundred two thousand, two hundred seventy-three".