144401025 has 24 divisors (see below), whose sum is σ = 242796960. Its totient is φ = 75706240.

The previous prime is 144401021. The next prime is 144401027. The reversal of 144401025 is 520104441.

It is a happy number.

It is not a de Polignac number, because 144401025 - 2² = 144401021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144400992 and 144401010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144401021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11892 + ... + 20741.

It is an arithmetic number, because the mean of its divisors is an integer number (10116540).

Almost surely, 2^144401025 is an apocalyptic number.

144401025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144401025 is a deficient number, since it is larger than the sum of its proper divisors (98395935).

144401025 is a wasteful number, since it uses less digits than its factorization.

144401025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32705 (or 32700 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 144401025 is about 12016.6977577037. The cubic root of 144401025 is about 524.6343939799.

Adding to 144401025 its reverse (520104441), we get a palindrome (664505466).

The spelling of 144401025 in words is "one hundred forty-four million, four hundred one thousand, twenty-five".