144222687 has 24 divisors (see below), whose sum is σ = 246902656. Its totient is φ = 82411992.

The previous prime is 144222671. The next prime is 144222697. The reversal of 144222687 is 786222441.

It is not a de Polignac number, because 144222687 - 2⁴ = 144222671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144222697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40693 + ... + 44094.

Almost surely, 2^144222687 is an apocalyptic number.

144222687 is a deficient number, since it is larger than the sum of its proper divisors (102679969).

144222687 is an frugal number, since it uses more digits than its factorization.

144222687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84809 (or 84797 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 144222687 is about 12009.2750405676. The cubic root of 144222687 is about 524.4183272033.

The spelling of 144222687 in words is "one hundred forty-four million, two hundred twenty-two thousand, six hundred eighty-seven".