144650257 has 2 divisors, whose sum is σ = 144650258. Its totient is φ = 144650256.

The previous prime is 144650251. The next prime is 144650269. The reversal of 144650257 is 752056441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137381841 + 7268416 = 11721^2 + 2696^2 .

It is a cyclic number.

It is not a de Polignac number, because 144650257 - 2¹¹ = 144648209 is a prime.

It is not a weakly prime, because it can be changed into another prime (144650251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72325128 + 72325129.

It is an arithmetic number, because the mean of its divisors is an integer number (72325129).

Almost surely, 2^144650257 is an apocalyptic number.

It is an amenable number.

144650257 is a deficient number, since it is larger than the sum of its proper divisors (1).

144650257 is an equidigital number, since it uses as much as digits as its factorization.

144650257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 144650257 is about 12027.0635235705. The cubic root of 144650257 is about 524.9360550992.

The spelling of 144650257 in words is "one hundred forty-four million, six hundred fifty thousand, two hundred fifty-seven".