144211389 has 16 divisors (see below), whose sum is σ = 220701312. Its totient is φ = 82050048.

The previous prime is 144211367. The next prime is 144211393. The reversal of 144211389 is 983112441.

It is a happy number.

It is not a de Polignac number, because 144211389 - 2¹² = 144207293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144211489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9844 + ... + 19629.

It is an arithmetic number, because the mean of its divisors is an integer number (13793832).

Almost surely, 2^144211389 is an apocalyptic number.

It is an amenable number.

144211389 is a deficient number, since it is larger than the sum of its proper divisors (76489923).

144211389 is a wasteful number, since it uses less digits than its factorization.

144211389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29716.

The product of its digits is 6912, while the sum is 33.

The square root of 144211389 is about 12008.8046449262. The cubic root of 144211389 is about 524.4046330263.

The spelling of 144211389 in words is "one hundred forty-four million, two hundred eleven thousand, three hundred eighty-nine".