144555213 has 8 divisors (see below), whose sum is σ = 210262176. Its totient is φ = 87609200.

The previous prime is 144555197. The next prime is 144555223. The reversal of 144555213 is 312555441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144555213 - 2⁴ = 144555197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144555223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190198 + ... + 2190263.

It is an arithmetic number, because the mean of its divisors is an integer number (26282772).

Almost surely, 2^144555213 is an apocalyptic number.

It is an amenable number.

144555213 is a deficient number, since it is larger than the sum of its proper divisors (65706963).

144555213 is a wasteful number, since it uses less digits than its factorization.

144555213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380475.

The product of its digits is 12000, while the sum is 30.

The square root of 144555213 is about 12023.1116188780. Note that the first 3 decimals coincide. The cubic root of 144555213 is about 524.8210582906.

The spelling of 144555213 in words is "one hundred forty-four million, five hundred fifty-five thousand, two hundred thirteen".