144400207 has 6 divisors (see below), whose sum is σ = 167975808. Its totient is φ = 123771564.

The previous prime is 144400183. The next prime is 144400241. The reversal of 144400207 is 702004441.

It is not a de Polignac number, because 144400207 - 2⁷ = 144400079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144400807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1473423 + ... + 1473520.

It is an arithmetic number, because the mean of its divisors is an integer number (27995968).

Almost surely, 2^144400207 is an apocalyptic number.

144400207 is a deficient number, since it is larger than the sum of its proper divisors (23575601).

144400207 is an equidigital number, since it uses as much as digits as its factorization.

144400207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946957 (or 2946950 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 144400207 is about 12016.6637216825. The cubic root of 144400207 is about 524.6334033320.

Adding to 144400207 its reverse (702004441), we get a palindrome (846404648).

The spelling of 144400207 in words is "one hundred forty-four million, four hundred thousand, two hundred seven".