144462229 has 4 divisors (see below), whose sum is σ = 147985740. Its totient is φ = 140938720.

The previous prime is 144462221. The next prime is 144462239. The reversal of 144462229 is 922264441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922264441 = 7 ⋅131752063.

It can be written as a sum of positive squares in 2 ways, for example, as 75655204 + 68807025 = 8698^2 + 8295^2 .

It is a cyclic number.

It is not a de Polignac number, because 144462229 - 2³ = 144462221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144462194 and 144462203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144462221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761694 + ... + 1761775.

It is an arithmetic number, because the mean of its divisors is an integer number (36996435).

Almost surely, 2^144462229 is an apocalyptic number.

It is an amenable number.

144462229 is a deficient number, since it is larger than the sum of its proper divisors (3523511).

144462229 is an equidigital number, since it uses as much as digits as its factorization.

144462229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523510.

The product of its digits is 27648, while the sum is 34.

The square root of 144462229 is about 12019.2441110080. The cubic root of 144462229 is about 524.7085051528.

The spelling of 144462229 in words is "one hundred forty-four million, four hundred sixty-two thousand, two hundred twenty-nine".