144620425 has 24 divisors (see below), whose sum is σ = 186273792. Its totient is φ = 111264000.

The previous prime is 144620423. The next prime is 144620429. The reversal of 144620425 is 524026441.

It is not a de Polignac number, because 144620425 - 2¹ = 144620423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144620393 and 144620402.

It is not an unprimeable number, because it can be changed into a prime (144620423) 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, 147537 + ... + 148513.

It is an arithmetic number, because the mean of its divisors is an integer number (7761408).

Almost surely, 2^144620425 is an apocalyptic number.

It is an amenable number.

144620425 is a deficient number, since it is larger than the sum of its proper divisors (41653367).

144620425 is a wasteful number, since it uses less digits than its factorization.

144620425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 144620425 is about 12025.8232566423. The cubic root of 144620425 is about 524.8999658234.

Adding to 144620425 its reverse (524026441), we get a palindrome (668646866).

The spelling of 144620425 in words is "one hundred forty-four million, six hundred twenty thousand, four hundred twenty-five".