144425001 has 48 divisors (see below), whose sum is σ = 237178368. Its totient is φ = 77817600.

The previous prime is 144424997. The next prime is 144425059. The reversal of 144425001 is 100524441.

It is a happy number.

It is not a de Polignac number, because 144425001 - 2² = 144424997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (144425101) 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 47 ways as a sum of consecutive naturals, for example, 186451 + ... + 187223.

It is an arithmetic number, because the mean of its divisors is an integer number (4941216).

Almost surely, 2^144425001 is an apocalyptic number.

It is an amenable number.

144425001 is a deficient number, since it is larger than the sum of its proper divisors (92753367).

144425001 is a wasteful number, since it uses less digits than its factorization.

144425001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 855 counting only the distinct ones).

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

The square root of 144425001 is about 12017.6953281401. The cubic root of 144425001 is about 524.6634287187.

Adding to 144425001 its reverse (100524441), we get a palindrome (244949442).

The spelling of 144425001 in words is "one hundred forty-four million, four hundred twenty-five thousand, one".