720233149 has 2 divisors, whose sum is σ = 720233150. Its totient is φ = 720233148.

The previous prime is 720233141. The next prime is 720233221. The reversal of 720233149 is 941332027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693005625 + 27227524 = 26325^2 + 5218^2 .

It is a cyclic number.

It is not a de Polignac number, because 720233149 - 2³ = 720233141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 720233149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720233141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360116574 + 360116575.

It is an arithmetic number, because the mean of its divisors is an integer number (360116575).

Almost surely, 2^720233149 is an apocalyptic number.

It is an amenable number.

720233149 is a deficient number, since it is larger than the sum of its proper divisors (1).

720233149 is an equidigital number, since it uses as much as digits as its factorization.

720233149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 720233149 is about 26837.1598534569. The cubic root of 720233149 is about 896.3776828556.

The spelling of 720233149 in words is "seven hundred twenty million, two hundred thirty-three thousand, one hundred forty-nine".