144626249 has 2 divisors, whose sum is σ = 144626250. Its totient is φ = 144626248.

The previous prime is 144626221. The next prime is 144626257. The reversal of 144626249 is 942626441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91336249 + 53290000 = 9557^2 + 7300^2 .

It is a cyclic number.

It is not a de Polignac number, because 144626249 - 2⁸ = 144625993 is a prime.

It is a super-4 number, since 4×144626249⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (144626299) 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, 72313124 + 72313125.

It is an arithmetic number, because the mean of its divisors is an integer number (72313125).

Almost surely, 2^144626249 is an apocalyptic number.

It is an amenable number.

144626249 is a deficient number, since it is larger than the sum of its proper divisors (1).

144626249 is an equidigital number, since it uses as much as digits as its factorization.

144626249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 144626249 is about 12026.0653997889. The cubic root of 144626249 is about 524.9070118000.

The spelling of 144626249 in words is "one hundred forty-four million, six hundred twenty-six thousand, two hundred forty-nine".