144417213 has 6 divisors (see below), whose sum is σ = 208602654. Its totient is φ = 96278136.

The previous prime is 144417199. The next prime is 144417239. The reversal of 144417213 is 312714441.

144417213 is a `hidden beast` number, since 1 + 4 + 441 + 7 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 134513604 + 9903609 = 11598^2 + 3147^2 .

It is not a de Polignac number, because 144417213 - 2⁵ = 144417181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144417913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8023170 + ... + 8023187.

It is an arithmetic number, because the mean of its divisors is an integer number (34767109).

Almost surely, 2^144417213 is an apocalyptic number.

It is an amenable number.

144417213 is a deficient number, since it is larger than the sum of its proper divisors (64185441).

144417213 is a wasteful number, since it uses less digits than its factorization.

144417213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16046363 (or 16046360 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 144417213 is about 12017.3713015784. The cubic root of 144417213 is about 524.6539978671.

The spelling of 144417213 in words is "one hundred forty-four million, four hundred seventeen thousand, two hundred thirteen".