144246425 has 6 divisors (see below), whose sum is σ = 178865598. Its totient is φ = 115397120.

The previous prime is 144246397. The next prime is 144246433. The reversal of 144246425 is 524642441.

It can be written as a sum of positive squares in 3 ways, for example, as 1658944 + 142587481 = 1288^2 + 11941^2 .

It is not a de Polignac number, because 144246425 - 2⁸ = 144246169 is a prime.

It is a super-2 number, since 2×144246425² = 41614062250561250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144246391 and 144246400.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2884904 + ... + 2884953.

It is an arithmetic number, because the mean of its divisors is an integer number (29810933).

Almost surely, 2^144246425 is an apocalyptic number.

It is an amenable number.

144246425 is a deficient number, since it is larger than the sum of its proper divisors (34619173).

144246425 is an equidigital number, since it uses as much as digits as its factorization.

144246425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769867 (or 5769862 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 144246425 is about 12010.2633193448. The cubic root of 144246425 is about 524.4470974326.

Adding to 144246425 its reverse (524642441), we get a palindrome (668888866).

The spelling of 144246425 in words is "one hundred forty-four million, two hundred forty-six thousand, four hundred twenty-five".