144729733 has 2 divisors, whose sum is σ = 144729734. Its totient is φ = 144729732.

The previous prime is 144729709. The next prime is 144729743. The reversal of 144729733 is 337927441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139074849 + 5654884 = 11793^2 + 2378^2 .

It is an emirp because it is prime and its reverse (337927441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144729733 - 2¹⁷ = 144598661 is a prime.

It is a super-2 number, since 2×144729733² = 41893391228502578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144729743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72364866 + 72364867.

It is an arithmetic number, because the mean of its divisors is an integer number (72364867).

Almost surely, 2^144729733 is an apocalyptic number.

It is an amenable number.

144729733 is a deficient number, since it is larger than the sum of its proper divisors (1).

144729733 is an equidigital number, since it uses as much as digits as its factorization.

144729733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 144729733 is about 12030.3671182554. The cubic root of 144729733 is about 525.0321770150.

The spelling of 144729733 in words is "one hundred forty-four million, seven hundred twenty-nine thousand, seven hundred thirty-three".