144555211 has 4 divisors (see below), whose sum is σ = 152163400. Its totient is φ = 136947024.

The previous prime is 144555197. The next prime is 144555223. The reversal of 144555211 is 112555441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112555441 = 1783 ⋅63127.

It is a cyclic number.

It is not a de Polignac number, because 144555211 - 2⁵ = 144555179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144555211.

It is not an unprimeable number, because it can be changed into a prime (144555011) 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, 3804066 + ... + 3804103.

It is an arithmetic number, because the mean of its divisors is an integer number (38040850).

Almost surely, 2^144555211 is an apocalyptic number.

144555211 is a deficient number, since it is larger than the sum of its proper divisors (7608189).

144555211 is an equidigital number, since it uses as much as digits as its factorization.

144555211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608188.

The product of its digits is 4000, while the sum is 28.

The square root of 144555211 is about 12023.1115357049. Note that the first 3 decimals coincide. The cubic root of 144555211 is about 524.8210558702.

The spelling of 144555211 in words is "one hundred forty-four million, five hundred fifty-five thousand, two hundred eleven".