144968225 has 6 divisors (see below), whose sum is σ = 179760630. Its totient is φ = 115974560.

The previous prime is 144968207. The next prime is 144968261. The reversal of 144968225 is 522869441.

It can be written as a sum of positive squares in 3 ways, for example, as 776161 + 144192064 = 881^2 + 12008^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144968225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2899340 + ... + 2899389.

It is an arithmetic number, because the mean of its divisors is an integer number (29960105).

Almost surely, 2^144968225 is an apocalyptic number.

It is an amenable number.

144968225 is a deficient number, since it is larger than the sum of its proper divisors (34792405).

144968225 is an equidigital number, since it uses as much as digits as its factorization.

144968225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798739 (or 5798734 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 144968225 is about 12040.2751214414. The cubic root of 144968225 is about 525.3204090999.

The spelling of 144968225 in words is "one hundred forty-four million, nine hundred sixty-eight thousand, two hundred twenty-five".